Communication
Large selection of free and FOSS Android apps and games with verified security and privacy protection.
Open Source Communication Apps: Page 1
Communication for Android
Full-featured email client
⬇1.2 M+
Group messenger - encrypted messaging, group chat and video calls
⬇909 K+
Thunderbird is a 100% open source, privacy focused email app.
⬇903 K+
Fully featured email client. Neat, intuitive user interface. Privacy friendly
⬇769 K+
SimpleX Chat - e2e encrypted messenger without any user IDs - private by design!
★5.0 ⬇556 K+
World’s largest encrypted email service - easy to use, free for all
⬇391 K+
Encrypted email & calendar service - easy to use, secure by design.
⬇390 K+
Fastest ever Matrix client
⬇385 K+
Forkgram is a fork of the official Telegram for Android application.
⬇382 K+
is an Open Source XMPP/Jabber Messenger for Android
⬇298 K+
Telegram is a messaging app with a focus on speed and security.
⬇265 K+
bluetooth mesh chat, Android port of Bitchat
⬇225 K+
Send messages, not metadata. No ads or trackers — only private messaging
⬇213 K+
Send notifications to your phone from any script using PUT/POST requests
⬇156 K+
Chat over e-mail. Elegantly Retro, Decentralized and Open. Privacy by Design.
⬇152 K+
Open-source and Ad-free SMS/MMS messaging app
★5.0 ⬇146 K+
Open source replacement to the stock SMS app on Android. A revival of QKSMS.
⬇139 K+
Unlock a secure, open-source calling experience with Fossify Phone
⬇139 K+
Encrypted, easy-to-use XMPP instant messenger for your mobile device
⬇135 K+
Have private video calls and chat using your own server.
⬇121 K+
Manage your contacts privately and efficiently with vCard support
⬇106 K+
Encrypt your Files and Communications. Compatible with the OpenPGP Standard.
⬇82 K+
Signal is a messaging app focused on privacy
★3.0 ⬇79 K+
Audio & Video Calls / Chat Take Control of your Communication!
⬇74 K+
aTox, a beautiful and modern Tox client
⬇73 K+
Fast simple yet secure messaging app fork of Singal
⬇68 K+
Chat with OpenRouter LLMs
⬇61 K+
Decentralized peer-to-peer secure messaging connecting via Bluetooth, Wi-Fi or Tor.
⬇59 K+
SMS messaging and MMS messaging app for Android, send messages fast, nice UI
⬇58 K+
The third-party Telegram android app, formerly known as Nekogram X
★5.0 ⬇57 K+