Imo is a free, simple,secure and faster international video call & instant messaging app.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Mac
- Windows
- Android
- iPhone
- Android Tablet
- HUAWEI AppGallery
- iPad




Wire is described as 'The most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure end-to-end-encryption' and is a very popular instant messenger in the social & communications category. There are more than 100 alternatives to Wire for a variety of platforms, including Android, iPhone, Web-based, Windows and iPad apps. The best Wire alternative is Signal, which is both free and Open Source. Other great apps like Wire are Telegram, Element, Discord and Tox.
Imo is a free, simple,secure and faster international video call & instant messaging app.








Quantum-resistant encrypted messaging, video/audio calls, and file transfers in the browser with optional registration and no downloads required.







TeleGuard is the data-secure messenger from Swisscows. TeleGuard encrypts every message and all telephone calls with encryption algorithm currently available: SALSA 20. TeleGuard servers are located in Switzerland, they are not subject to the data protection laws of the EU /...








VeilidChat is a 1-to-1, person-to-person text only chat application which serves as a technology demonstration for the Veilid application development framework. All communication is end to end encrypted, authenticated, private routed, and peer-to-peer. It's currently in early beta.



Chitchatter is a free (as in both price and freedom) communication tool. Designed to be the simplest way to connect with others privately and securely, it is:

Secure team messaging platform with organized topic-based conversations, real-time collaboration on Docs, Sheets, Slides, integrated calendar scheduling, one-click meetings, shared tasks and files, Google Workspace support, admin controls, compliance, and advanced search.




kChat is a secure instant messaging for businesses, which makes it possible to discuss matters live and organise projects.

Experience a new way to connect with your people online. Join an existing community space or launch your very own branded platform tailored to your audience.




Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line administration tool in python + gRPC. Clients for Android, iPhone, and Web - ReactJS (all licensed under Apache 2.0).



