WhatsApp Vs Facebook Messenger

If you are interested in the major similarities and differences between the two most used instant messaging options out there, this detailed WhatsApp vs Facebook Messenger guide explores everything you need to know. When compared to other instant messaging services out there including Facebook Messenger, Viber, Telegram, and Signal, WhatsApp is the most popular service of this kind with the largest user base.

According to several recent studies done on the global usage of instant messaging apps, WhatsApp is followed by Facebook Messenger that has around 1.3 billion users. The third place is reserved for WeChat that has almost 1 billion users. WhatsApp is extremely popular in Africa, the vast majority of Europe as well as North America. Facebook Messenger is very popular in Europe, Australia, and North America as well.

WhatsApp Vs Facebook Messenger – Which One is the Market Leader?

As mentioned in the previous section, with over 2 billion users, WhatsApp is the market leader. As estimated recently, WhatsApp users deliver around 100 billion instant messages every day. While WhatsApp has the biggest active user base, Facebook Messenger is closely following. There are only twenty-five countries where WhatsApp does not lead the market while at the same time, the service is the preferred instant messaging option in the United Kingdom and one hundred and sixty-nine other countries.

However, it is not the most used instant messaging app in its domestic market of the United States where Facebook Messenger is the leader. Speaking of the United States, here WeChat, Telegram, and other instant messaging options do not play any major role. In the United States, WhatsApp is the third most used instant messaging service after Facebook Messenger and Snapchat. The bottom line, this WhatsApp vs Facebook Messenger battle comes down to security, privacy, and other services’ features which are explored in detail further.

What is WhatsApp, How It Works?

The very first WhatsApp version was released back in 2009 so over a decade ago by WhatsApp LLC. Developed by Brian Acton and Jan Koum, WhatsApp is the most used instant messaging cross-platform, freeware, and voice-over-IP service. The service was acquired by Facebook Inc back in 2014 or five years after the initial release so both Facebook Messenger and WhatsApp are owned by the same company.

As expected from an instant messaging service with such a great user base, with WhatsApp, you can send voice as well as text messages, you can share files, documents, images, and videos, you can share your location, and more. The service’s client app runs smoothly on Android and iOS-powered devices and you can get the app for free from the Google Play Store and App Store. The service is also available to desktop users who use Windows and Mac OS desktop devices. However, to use the desktop version of the app, users still need to connect the app client to their cell phone number.

Providing a cellular phone number is always required to register and get started. In addition to this standard client app, the company behind WhatsApp also released a business version of the game WhatsApp Business that targets business owners. WhatsApp also uses Signal encryption technology thanks to which you can rest assured that your WhatsApp private messages and files shared are always protected and safe.

  • Relies on Signal encryption protocols
  • Free video and voice messages
  • Sharing files, images, and documents
  • Group chats and calls
  • Desktop and mobile apps free
  • Requires a cellular phone number

What is Facebook Messenger, How It Works?

Further in this WhatsApp vs Facebook Messenger guide, we take a look at the second most used instant messaging service Facebook Messenger. Owned and operated by the same company that operates and owns WhatsApp, Facebook Messenger was released in August of 2011 or two years after WhatsApp. Neatly developed by Facebook Inc. Facebook Messenger was released as Facebook Chat in 2010 but the company decided to upgrade the service and change its name to what we know today.

At the time of its release, Facebook Messenger was only available to iOS and Android mobile users while today, the service offers a standalone website client as well as a desktop app that can be downloaded for free from the App Store and Microsoft Store to macOS and Windows-powered desktop devices. Just like WhatsApp, Facebook Messenger lets you send text and voice messages, make video and voice calls, exchange files including images and videos, as well as send stickers, and more.

In order to start using Facebook Messenger, you need to provide your Facebook login or you need to create your Facebook account if you do not have one. Unlike WhatsApp, Facebook Messenger does not require providing your cellular phone number to get started. With WhatsApp, you can share your contacts from your contact list while Facebook does not offer this option. Also, with Facebook Messenger, you cannot send documents while this option is available when using WhatsApp.

Facebook Messenger is not end-to-end encrypted like WhatsApp but you can send end-to-end encrypted messages using the Facebook Messenger Secret Conversations option. When you turn on this option, your messages are one hundred percent safe and secure as literally nobody can access them or modify them. Once again, to send end-to-end encrypted Facebook Messenger messages, you need to enable the option on the app.

  • Free desktop and mobile app
  • Does not require a cellular phone number
  • Video and photo sharing
  • Voice and video calling
  • Secret Conversations option
  • Vanish Mode for disappearing messages

WhatsApp Vs Facebook Messenger – Which One is Better

As suggested in the previous section of our WhatsApp vs Facebook Messenger guide both instant messaging services have their pros. While they are very similar, there are some differences between the two as well. One of the major differences lies in their privacy and data security measures. While WhatsApp uses end-to-end encryption, your Facebook Messenger messages are not end-to-end encrypted by default and you have to use the service’s Secret Conversations option to add this extra protection layer to your Facebook messages.

To use WhatsApp, you need to provide your cellular phone number, while Facebook asks for your Facebook account login info to get started. Both offer you the option to send disappearing or self-destruct messages which is a huge plus and both provide all major instant messaging options including video and voice calling, file sharing, and more. So, which service wins the ultimate WhatsApp vs Facebook Messenger battle. The answer depends on your preferences. If you want more social options, Facebook Messenger is better for you but if you are looking for a safer service, WhatsApp wins.

Gmail Encryption

Gmail alongside Outlook is the most popular email service provider that offers apps for mobile devices as well as desktop devices. In this Gmail encryption guide, we take a look at Gmail, its features, how it works, and finally, its encryption technology used. By the end of this article, you will learn how Gmail encryption works, how to enable end-to-end encryption, or how to encrypt your Gmail emails. Considering the fact that email remains one of the most used options for online communication besides instant messaging apps, learning more about Gmail encryption is a must if you want to protect your email communication.

Today, there are two kinds of email services including webmail options and email clients. Gmail, we discuss here is a webmail-client since you can access it on any device you use via basically any web browser that is installed on your device. Yahoo Mail, as well as Microsoft Outlook, are also webmail services. While web-based email services (webmail) can be access using any web browser, email clients always use specialized email software. Gmail also offers a free email client that supports end-to-end encrypted messaging.

Gmail and Its Major Features

Developed by Google, Gmail is one of the most popular, most used email services you can use for free. As estimated back in 2019, Gmail had over 1.5 billion users who actively use the service. As mentioned in the previous section, Gmail can be accessed via any web browser or using the official Gmail desktop or mobile app that is downloadable for free regardless of which device you use.

The most popular email service was developed by Paul Buchheit and it was released back in April of 2004. Today, Gmail is available in over one hundred languages. At the time of its launching, Gmail provided a great storage capacity of 1 GB per user and when compared to other email services active back in the day, this was a huge step up. Over a decade later, Gmail provides every user with 15 GB of storage capacity.

Before we take a look at the Gmail encryption technology employed, it should be noted that users of Gmail can share larger files (up to twenty-five megabytes). Gmail is also associated with Google Drive you can use to insert images, videos, or files into your Gmail messages. Just like its biggest competitor Microsoft Outlook, Gmail servers operate extraordinarily when it comes to filtering malware and spam messages. Other great Gmail features include:

  • Schedule your emails
  • Google AI for composing emails
  • Email notifications
  • Emails search tools
  • Gmail Confidential Mode
  • Gmail offline mode

Gmail as one of the most used email services out there offers a bunch of excellent options and one of these allows you to schedule your emails to be sent whenever you like. Thanks to great Gmail updates, with the service you can move your emails, mute certain conversations, and much more. You can also help of Google AI when composing your emails. To access this option, open Gmail, head to the Settings department, press on the Writing Suggestions button and click Compose.

Gmail is also connected to Google Pay so you can use the service to request and send money. Thanks to the service’s Confidential Mode, you can set an expiry time for every email you sent. If you are waiting for an important email, you can get notified when that email arrives. Gmail is also associated with Google Drive so you can share via Gmail anything from your Google Drive account. Many users do not know that Gmail lets you translate all of your messages as Google Translate is built into the service. These are just several of the many great Gmail features that make email communication easy, fun, and effortless.

Gmail Encryption Technology

This leads us to Gmail encryption technology. Gmail encryption is Transport Layer Security (TLS). In other words, Gmail uses Transports Layer Security encryption technology by default and TLS is Secure Sockets Layer (SSL) successor. TLS is widely used in many applications out there besides email including voice-over IP and instant messaging apps. It provides online data and privacy between two or multiple communicating applications for as long as all participating parties use the same encryption technology.

In Gmail technology as well as other services and apps using the same encryption protocols, TLS always features two different layers including the TLS record and handshake protocols. In real life, Gmail encryption ensures that all emails you send using the service are encrypted by default. This makes it almost impossible for any outsider to access and modify your emails as they are traveling from your to your intended recipient’s device.

However, if the intended recipient of your email is using another email service that does not employ TLS encryption which is very rare, your Gmail messages will not be protected this way or will not be encrypted. Besides this most basic Gmail encryption technology, the service also supports Secure/Multipurpose Internet Mail Extensions (S/MIME) that is available for Google Workspace Suite premium (paid) accounts.

What About End-to-End Encryption?

Since 2014, Google that owns and operates Gmail has been discussing securing its email service with end-to-end encryption but nothing has been done in this direction. In other words, Gmail does not provide end-to-end encryption. Nonetheless, you can end-to-end encrypt your Gmail messages thanks to different third-party services and Gmail plugins that offer highly secure, very reliable end-to-end encryption.

Gmail End-to-End Encryption

While Gmail does not provide end-to-end encryption, there is a number of great services that do all the hard work for you such as PreVeil Gmail plugin you can download for free. With this valuable plugin, you can instantly encrypt your Gmail messages and rest assured that your private, confidential data is safe from those prying eyes. With great FlowCrypt, you can encrypt your Gmail with Pretty Good Privacy encryption.

In addition to FlowCrypt, Lockmagic is also an excellent option for encrypting your Gmail messages as well as Mailvelope, and Snapmail which use very similar technology to protect your Gmail account and your Gmail messages. Lastly, you can also Google E2Email Chrome extension which seamlessly encrypts all of your Gmail messages and adds that extra layer of protection whenever needed.

WhatsApp Vs Line

In this WhatsApp vs Line guide, we take a look at the most popular instant messaging option with over two billion users WhatsApp and one of its major rivals Line. Here, we focus only on WhatsApp and Line, so if you are interested in other comparisons between WhatsApp and Viber, Signal, and Telegram, make sure you check out our other articles. Further in this WhatsApp vs Line article, we examine both services’ features, we check their instant messaging options, disappearing messaging options, and of course, their security and privacy measures.

Both Line and WhatsApp just like other popular instant messaging apps out there let you send text messages, share images and files, as well as make free calls using your portable device. When the two apps are compared, it is quite obvious that both offer very similar texting and calling features. So, let’s first examine WhatsApp and its features before we compare it with Line and what it offers.

WhatsApp Features, Usage, and Popularity

According to several recent studies done on the most popular instant messaging apps on a global scale, WhatsApp is the world’s leader used in over one hundred and nine countries or over fifty-five percent of the world. Some countries where WhatsApp is very popular include India, Mexico, Brazil, as well as many South American and European countries.

The same studies also concluded that Facebook Messenger is the second most used instant messaging service while Viber follows thanks to its strong presence in Europe especially in Eastern Europe and countries including Ukraine, Moldova, and Belarus. Telegram, WeChat, and Line follow. Line is very popular in Asia including Japan and China while it is used in other parts of the globe but not as much as in Japan and China.

Back to WhatsApp, the instant messaging service owned and operated by Facebook Inc. was released over ten years ago in February of 2009. The service was developed by Jan Koum and Brian Acton who at the time worked for WhatsApp LLC. Just like other great instant messaging services out there, WhatsApp is a cross-platform, voice-over- IP freeware service thanks to which you can make and receive free calls, make video calls, share your location, send text messages, as well as send images, videos, files, and documents.

While WhatsApp is primarily used on mobile devices, you can also get the app on your desktop device and chat from there. To use the app, you need to be connected to the internet and you need to provide your mobile telephone number to register and get started. Unlike several other services of this kind including Viber and Line, with WhatsApp, you can only call other users of the app. When it comes to its encryption technology employed, WhatsApp relies on Signal encryption protocol to ensure that your private, confidential data is safe and secure at all times. Other WhatsApp features include:

  • Free voice calling options
  • Group calls (up to eight users)
  • Broadcast messaging
  • End-to-end encrypted messages
  • Files, images, and video sharing
  • Free to download and use
  • Option to delete sent messages
  • Can be used without a SIM card

WhatsApp Vs Line – Line Security, Features, and Usage

Further in this WhatsApp vs Line guide, we take a look at Line and its features. Just like WhatsApp, Line is a freeware instant messaging app that is downloadable for free. The app can be downloaded to desktop computers, tablets, and of course, smartphones. The app was developed by LINE Corporation and the very first version of the app was released in June of 2011. Using Line, you can send text messages, share images and files, as well as make video and audio calls.

Line and the company behind it also provides a premium platform that includes a variety of other services such as the Line Pay digital wallet, Line Today news streams, Line TV, as well as Line Webtoon and Line Manga. As mentioned in the previous section of our WhatsApp vs Line guide, Line is the most used instant messaging app in Japan since 2013. As announced back in October of 2014, the instant messaging app had over 560 million users while this number increased to 600 million users in February of 2015. Today in Japan only, Line has over 84 million active users.

Besides being extremely popular in Japan, Line is also very popular in Thailand and Taiwan.  At the time of its release, Line was only available for iOS and Android smartphones while today, the service offers apps for macOS and Microsoft Windows desktop computers as well as BlackBerry and Windows Phone devices, and iOS tablets. When it comes to its encryption technology, Line relies on ECDH encryption protocol, and just like WhatsApp, it uses a Facebook account or a cellular phone number for registration. Other Line features include:

  • Free voice and video calling
  • Top-notch call quality
  • Group calls (up to two hundred users)
  • A plethora of free stickers
  • Timeline views
  • Email account integration
  • Black List ID options
  • Different options to connect with other Line users

WhatsApp Vs Line – Which One is Better?

As previously mentioned in this WhatsApp vs Line guide, both instant messaging options offer great features and both use reliable encryption protocols to protect your private data. In terms of their popularity, WhatsApp wins this battle since it has over two billion users across the world while Line has significantly less and it is mainly favored in Asia. At the same time, WhatsApp uses more data when compared to Line so Line wins this battle.

Line allows you to contact or call your friends or family members even though if they do not use the service and with WhatsApp, you can only communicate with other WhatsApp users. While both services allow you to make free video and voice calls, WhatsApp calls once again use more data. Those who prefer group calls will enjoy Line more since the service supports group calls with up to two hundred participants while with WhatsApp you can also make group calls with up to eight other users.

Both WhatsApp and Line function as social network platforms bit Line offers timeline options, unlike WhatsApp. This leads us to stickers and here Line wins considering it offers a plethora of free stickers you can get within the app for free. Depending on your preferences, both instant messaging apps win. If you want to use an app with a bigger user base, then WhatsApp is the best option. However, if you want to use an app with more social features, then you should turn to Line.

WhatsApp Vs Viber

In this detailed WhatsApp vs Viber guide, we take a look at the most used instant messaging app with over two billion users, WhatsApp and we take a look at one of its major rivals Viber. In this WhatsApp vs Viber comparison guide, we also take a look at the service’s security and data privacy measures and encryption technologies employed among other features. Once you are done, you can decide which instant messaging app fits your preferences more and which is one is safer to use, so let’s start.

Thanks to instant messaging apps we have at our disposal today, we get to communicate with friends and family who are scattered all over the globe at any time and any place. While Viber and WhatsApp are extremely popular, there are many other great services with quite similar features such as Telegram and Signal. If you are interested in learning more about these, make sure you check out other comparison articles here.

For the purpose of this WhatsApp vs Viber guide, we take a look at these only and they surely have many things in common. Both Viber and WhatsApp allow users to make video and voice calls, send text messages, share files, share images and videos, transfer documents, and communicate in group chats. Both Viber and WhatsApp are available for desktop, Android, and iOS devices and both use end-to-end encryption to add an extra protection layer. There are also some differences between the two and these are explored further.

WhatsApp and Its Features

With over two billion active users, WhatsApp is the most used instant messaging app and there is no wonder why considering it offers a plethora of great features. The app was launched by WhatsApp LLC and developed by Jan Koum and Brian Acton back in 2009. The client application was acquired by Facebook Inc. in 2014 and this has boosted its popularity among youngsters for sure. In addition to being the major instant messaging app used in North America, WhatsApp has its local fans across the globe including many parts of Europe, Latin America, and Africa.

With such a great user base, WhatsApp vs Viber as well as WhatsApp vs other instant messaging options is taking over the throne. Every single day, tens of millions of instant messages are sent using the app. While the numbers of staggering, Viber with over one billion users is the biggest WhatsApp rival even though many people in the United Kingdom and the United States have never used or even heard of Viber. While WhatsApp wins the popularity contest, Viber offers a greater collection of awesome features. However, let’s first examine what WhatsApp offers.

The app is a cross-platform, freeware, voice-over-IP centralized messaging service you can use to send text messages, make voice and video calls, share images and files, share your location, and share documents. To use the service, a user needs to provide his or her cellular phone number. The app is free for download on the Google Play Store and App Store and the service works over Wi-Fi, 4G, and 3G.

It is also important to note that WhatsApp uses a cryptography algorithm developed by Open Whisper Systems to protect your privacy. To add an extra layer of protection when communicating using WhatsApp, you can turn to the WhatsApp disappearing messages option which allows you to send fully end-to-end encrypted, self destruct messages. With WhatsApp, chat backups are possible with iCloud and Google Drive.

  • Encrypted messaging
  • Delivery and reading confirmations
  • File sharing options
  • Voice and video calling options
  • Location and contact sharing
  • Disappearing messages

Viber and Its Features

As mentioned in the previous section of our WhatsApp vs Viber guide, Viber with over one billion users is the biggest WhatsApp rival and it offers a great selection of features. Launched by Rakuten Viber that is part of Rakuten Inc. in 2010, Viber is also a voice-over-IP, cross-platform instant messaging app that you can get for free on the Google Play Store and App Store. The Viber app can also be downloaded to Linux and Windows desktop devices.

Just like with WhatsApp, to get started with Viber, you need to register using your cellular phone number while using the service on your desktop device does not require mobile connectivity. Viber is primarily used for sending text messages but it allows users to share files, documents, images, videos, and video records. With Viber, you can also make voice and video calls, share your location and contacts, as well as send stickers and GIFs.

Unlike WhatsApp, Viber offers a paid mobile calling and international landline service Viber Out that you can use to communicate with anyone whose phone number you have when you are not connected to the internet. Group chats and calls are also possible while chats are one hundred percent synced between different devices that you use. Viber Communities is another great feature thanks to which you can communicate with people across the globe about various topics.

All of these major Viber features we mentioned above are secured with the best end-to-end encryption including your one-on-one chats, text messages, group messages, as well as shared media, and basically everything else. The company responsible for the app cannot go through or read your personal messages nor access your personal files shared. With Viber, you can send disappearing or self destruct messages as well as use its Hidden Chat option to hide some or all of your chats.

  • All Viber features end-to-end encrypted
  • Great Viber Communities options
  • Hidden and Secret Chat options
  • External calls with Viber Out
  • Viber Games
  • Smart notifications

WhatsApp Vs Viber – Which One is Better?

When it comes to WhatsApp vs Viber battle, Viber most certainly provides greater data privacy and security to its users considering all of its features are end-to-end encrypted. Viber also has a greater selection of features and many of these are not offered by WhatsApp such as Hidden Chat and Secret Chat options. Thanks to Viber Communities options, you can communicate with people about various topics while Viber Games provide so much fun as well.

With Viber, you can also make mobile and landline calls when you are not connected to the internet and this is not possible with WhatsApp. WhatsApp also has its benefits as well such as group chat options and disappearing messages options. WhatsApp is also end-to-end encrypted but Viber features some extra privacy options including its Trust List feature and WhatsApp does not offer anything similar.

The bottom line, this WhatsApp vs Viber battle has to see Viber coming out as the winner based on its capabilities and features. Viber has more great options and it employs more data and privacy security options. At the same time, WhatsApp has a bigger user base and it most certainly leads in many countries. If you are looking for a more universal, more multi-functional instant messaging app, Viber is an excellent choice. If you are looking for an instant messaging app that has a great user base and that is easier to use or more user-friendly, then go with WhatsApp.

How to Use PGP Encryption?

You want to learn how to use PGP encryption to boost your data privacy and messaging security? If so, you are in the right place as in this detailed guide, you learn how to use PGP encryption with great PGP encryption tools. You also learn more about this technology and how it works. You will also learn how to use PGP encryption to encrypt your private messages and send them using Ramnia, so let’s begin.

PGP encryption stands for Pretty Good Privacy and it was developed back in 1991 by Phil Zimmermann who today works at Silent Circle that crafts encrypted messaging apps and services and one of them is Silent App. In the most basic sense, PGP encryption is a powerful encryption system that can be used for sharing encrypted text messages and files as well as for encrypted emails.

Since its launch many years ago, PGP encryption has become the default data privacy and data security standard for email communication. One of the major reasons behind the growing popularity of this encryption technology lies in the fact that the system is freeware or available for free. Naturally, there are other factors involved including the fact that PGP encryption uses both public-key and or symmetric key encryption which basically allows internet users across the globe to share encrypted files and send encrypted messages.

Uses of PGP Encryption

PGP encryption is a widely used system for encrypting and decrypting messages sent using email clients. Since its launch, the system was freeware and it has spread quickly among internet users who appreciated adding extra security levels when communicating via email. In addition to being used for encrypting and decrypting emails, with PGP encryption, you can also encrypt files that you have stored on the cloud or your device. Using the same system, you can also verify the ID of the message sender.

  • Email encryption and decryption
  • Authentication of messages
  • Encryption of files

Before you learn how to use PGP encryption, we should examine how this system works. The system provides greater online privacy as well as cryptographic authentication. It works through data compression combined with cryptography and hashing techniques and in this sense, it is quite similar to SSL (Secure Socket Layer) encryption technologies that are mainly used by websites. It is also similar to SFTP (Secure File Transfer Protocol) that secures data as it travels.

To learn how to use PGP encryption, you should familiarize yourself with the concepts of public and private keys. The PGP encryption system uses both public and private keys. A public key is a randomly-generated encryption key known publicly. A private key is created every time you send an encrypted message while using a private key which is also unique and randomly-generated, the intended recipient decrypts the message.

Since both private and public keys are used, PGP encryption uses asymmetric and symmetric key technology to protect your private data as it travels from your device to the recipient’s device. On the other hand, AES (Advanced Encryption Standard) uses only symmetric key encryption technology which means the same key is used for both encrypting and decryption of private data. The process of PGP encryption goes as following:

  • PGP encryption system generates a unique, one-time-use, random session key
  • The public key is encrypted and the message is protected as it travels
  • The recipient of the message decrypts it using a private key

How to Use PGP Encryption with Ramnia?

For maximum security, you should consider learning how to use PGP encryption with Ramnia to send encrypted messages or notes. Before you turn to Ramnia, you need to find a PGP client, software, or tool out there as this will not be challenging as a simple Google search for PGP clients will list great options that work the same. One of these options is the Kleopatra Open Source (GNU GPL) PGP client that is available for Linux and Windows. To get started, you need to download the app and install it on your desktop device.

  • Open the app and click on the New Key Pair button
  • Enter your name and email in the designated box (optional)
  • Enter a unique passphrase (make sure you remember it)
  • The key pair is created (make sure you make a backup of your key pair)
  • Click on the key pair created and export it to your device
  • Open the key pair in Notepad and copy the entire key
  • Open Kleopatra, open Tools, Clipboard, and choose Certificate Import
  • Certify the Certificate (enter your passphrase)
  • Open Notepad and write the message you want to encrypt
  • Copy the message, open Kleopatra, go to Tools, Clipboard, and press Encrypt
  • Add recipient (pick the key you just imported)
  • Your encrypted message shows in your Clipboard
  • Open your encrypted message in Notepad and send it to the recipient

To use Ramnia to send your self destruct PGP encrypted message, head to the Ramnia official website, or get the Ramnia app from the Google Play or App Store depending on which device you use. The app is very easy to use, you write your encrypted message or note in the designated box on the homepage, press on the Create Secret Link button, and copy the newly created, randomly-generated secret link. Send the link to the recipient and this is it.

How to Encrypt Emails and Files?

The next question is how to use PGP encryption for encrypting your emails and files? Just like in the previous example, using PGP encryption involves getting a software, app, or add-on to encrypt emails and files. When it comes to email encryption, you have a variety of great options that work for Apple Mail, Outlook, and Gmail such as Gpg4o that perfectly works with Outlook, GPGTools that works with Apple Mail, and FlowCrypt that works with Gmail.

When looking into how to use PGP encryption on your Android and iOS device, Android users can turn to FairEmail while ProtonMail can be downloaded on both Android and iOS devices as well as desktop devices. To encrypt files stored on your device and shared files, you can also PGPTool and Gpg4win that allows you to encrypt your emails as well.