Uup is described as 'Reclaim your privacy With Uup. Just download the app and start chatting. Uup App is based on asymmetric encryption. Private key is generated based on the device and it doesn't need any email, mobile number or anything else to work' and is a Encrypted Chat app in the social & communications category. There are more than 50 alternatives to Uup for a variety of platforms, including Android, Windows, Linux, iPhone and Mac apps. The best Uup alternative is Signal, which is both free and Open Source. Other great apps like Uup are Telegram, Element, Matrix and Tox.
Delta Chat looks and feels like other popular messenger apps, but does not involve centralized control, tracking or selling you, friends, colleagues or family out to large organizations. "Privacy by Design" has never been more fun.
Conversations is a privacy focused, open source XMPP Texting [Jabber] client for Android 4.0+ smart phones with wife-approved easy encryption [OTR, OMEMO, or GPG].
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.
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.
Messages is Google's communications app for Android to helps send and receive SMS and MMS messages. You can also send group texts as well as your favorite pictures, videos and even audio messages to your contacts.
An alternative Telegram client based on TDLib, with higher speed, slicker animations and experimental features.
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.
Dino is a modern open-source chat client for the desktop. It focuses on providing a clean and reliable Jabber/XMPP experience while having your privacy in mind. Using GTK+/Vala.
Status combines a private messenger, secure crypto wallet, and Ethereum Web3 DApp browser into one powerful communication tool. Chat with friends and growing communities. Buy, sell, store, and exchange digital assets.
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.
Session is the world's first open-source, decentralised private messenger to use industry-leading Signal Protocol encryption — without asking for your phone number.
Germany
EU
France
United States
Switzerland