Nimbuzz has been discontinued. Similar apps include Signal, which is free and open source. Other options are Telegram, WhatsApp, Wire and Jitsi Desktop. Instant Messengers like Nimbuzz are a crowded field, with more than 50 alternatives for Android, iPhone, Mac, Windows and iPad.
An open-source messaging app emphasizing privacy with encrypted communication. Share texts, calls, photos, and videos without ads or trackers, available across major platforms. Developed by Signal Technology Foundation and praised globally for security measures.
United States
Maximize your messaging experience with efficient communication, speedy delivery, and optional end-to-end encrypted Secret Chats. Engage in unlimited channels and groups up to 200,000 members. Enhance chat management and media sharing with Telegram Premium and its exclusive benefits. All core features remain free.
United Arab Emirates
Exchange messages without SMS fees using this app for iPhone, Android and desktop, featuring group chats, multimedia sharing, and video calls. The app requires an internet connection and the latest version for optimal functionality.
United States
Secure communication platform featuring encrypted chats and calls, file and media sharing, self-deleting messages, device verification, group collaboration, and customizable settings. Supports use across multiple devices with no phone number required for access.
Switzerland
Jitsi Desktop (previously SIP Communicator) is a legacy audio/video and chat communicator with full encryption, precedessor of Jitsi Meet .
United States
Threaded group conversations combine live and asynchronous messaging, separating topics for organized collaboration, supporting open-source, cloud, and self-hosted deployments, secure communication with encryption, and multi-platform access for diverse teams.
United States
Offers secure messaging with end-to-end encryption, unlimited free calls, group chats for up to 250 members, rich media sharing, emoji reactions, AR lenses, self-destruct messages, affordable international calls, community channels, and robust privacy across devices.
Japan
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].
Germany
EU
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.
United States
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.
FranceEU
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.
United States
An alternative Telegram client based on TDLib, with higher speed, slicker animations and experimental features.
United Arab Emirates
