Cost / License
- Free
- Open Source (GPL-3.0)
Application types
United KingdomPlatforms
- Mac
- Windows
- Linux
- Android
- iPhone
- Flatpak
- AppImageHub
- Snapcraft
- Flathub
+4
Speek! Alternatives
Speek! is described as 'The first messenger that onymous and censorship-resistant by design. Speek! messenger encrypts all messages and is secure, private and decentralized' and is a instant messenger in the social & communications category. There are more than 50 alternatives to Speek! for a variety of platforms, including Android, Windows, Linux, iPhone and Mac apps. The best Speek! alternative is Signal, which is both free and Open Source. Other great apps like Speek! are Telegram, Element, Matrix and Tox.
Alternatives list
Tinfoil Chat (TFC) is a FOSS+FHD peer-to-peer messaging system that relies on high assurance hardware architecture to protect users from passive collection, MITM attacks and most importantly, remote key exfiltration.
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Linux
46 Anonymous Messenger alternativesA peer to peer private anonymous and secure messenger that works over Tor.
+9
- 51 Signal-FOSS alternatives
A fork of Signal for Android with proprietary Google binary blobs removed. Uses OpenStreetMap for maps and a websocket server connection, instead of Google Maps and Firebase Cloud Messaging.
S 
Make video calls to anybody in the world with a private connection. Share the conversation by sharing url.
World's most secure P2P messenger. End-to-end encrypted, zero-server architecture, quantum-resistant roadmap. WebRTC direct connections, advanced ECDH + DTLS + SAS verification, full ASN.1 validation.
+1
Retro AIM Server is an instant messaging server that revives AOL Instant Messenger (and ICQ!) clients from the 2000s.
R
Cost / License
- Free
- Proprietary
Application types
Platforms
- Android
- iPhone
- Android Tablet
- iPad
+5
HookZApp is a cloud native, secure, fast, and feature-rich Next-Gen communication, collaboration & social media platform that makes everyday life, fun and easy.
Cost / License
- Free
- Proprietary
Application types
Platforms
- Android
- iPhone
- iPad
34 VaultNote alternativesVaultNote is a modern, privacy-focused tool for sharing sensitive data like passwords and API keys. Unlike traditional services, all encryption (AES-256) happens directly in the user's browser (Client-Side Encryption) before any data leaves the device.
Cost / License
- Freemium
- Open Source (MIT)
Platforms
- Online
- Software as a Service (SaaS)
Send private messages that destroy themselves after reading. Simply write your private message in the text box and receive an encrypted link.
Cost / License
- Free
- Proprietary
Application types
Platforms
- Online
- Android
- Android Tablet
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