It is the brand new, and fastest ever, Matrix client. It is for personal and community use, and will support enterprise functionality later this year.



SimpleX Chat is described as 'SimpleX - the most private and secure chat and applications platform - now with double ratchet E2E encryption! Built on Haskell with Love and Coffee' and is a popular instant messenger in the social & communications category. There are more than 50 alternatives to SimpleX Chat for a variety of platforms, including Android, Windows, iPhone, Mac and Linux apps. The best SimpleX Chat alternative is Signal, which is both free and Open Source. Other great apps like SimpleX Chat are Telegram, Element, Tox and WhatsApp.
It is the brand new, and fastest ever, Matrix client. It is for personal and community use, and will support enterprise functionality later this year.



Provides a chat experience over email, with all messages and contacts stored on user devices, open source code, group media support, and compatibility with any provider. No central servers, no tracking, works without SIM, and can be used by anyone just via email.




Keybase is a new and free security app for mobile phones and computers. For the geeks among us: it's open source and powered by public-key cryptography.



Linphone is one of the most famous open source softphones in the world. It is fully SIP-based, for all calling, presence and IM features.




Fast SMS messenger with iOS 16 style interface. Free and no ads. Supports work with two SIM cards.



ArcaneChat is a Delta Chat client and was created with a focus on usability, good user experience, and saving data plan. Also the app usually experiments with new features that eventually might get added to the official Delta Chat client.



Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between all of them! We think conversation should be easily shared between all of your devices, not trapped as text messages on your phone.




Provides comprehensive communication features including group video calls, voice calls, fast messaging, photo sharing, and location mapping. Access through mobile and web platforms with real-time notifications, ensuring seamless interactions using multimedia tools.



Self-hosted communication platform with secure audio, video, chat, web conferencing, screensharing, advanced encryption, and metadata privacy, running on user-controlled servers, supporting web and mobile apps, and eliminating third-party data exposure.








ChatSecure is a free and open source messaging app that features OTR encryption over XMPP. You can connect to your existing accounts on Facebook or Google, create new accounts on public XMPP servers(including via Tor), or even connect to your own server for extra security.



qTox - The most feature-rich Tox client; P2P instant messaging, audio and video calls.

