Amni-Haven - Haven Client App

Amni-Haven - Haven Client App is a self-hosted, encrypted chat client that lets you run your own messaging server while keeping full control of your data. Connect the app to your Haven server for end-to-end encrypted text, media sharing, voice and video calls and fully featured channels without third-party data harvesting. Encryption keys are generated on-device and never leave your phone, with optional encrypted key backup for restoring across devices. If you value privacy and server control, this app provides a secure and customizable chat experience.

Key Features

End-to-end encryption using ECDH P-256, HKDF-SHA256 key derivation and AES-256-GCM ensures message confidentiality while keys remain on your device and encrypted backups are optional. Full chat functionality supports public, private and direct channels, reactions, reply threads, message editing and deletion, pinning, file and media sharing, a GIF picker, typing indicators, read receipts and global search. Real-time voice channels and video calling use WebRTC and include camera toggle, screen sharing, push-to-talk and mute/deafen controls. Twenty-four built-in themes with precise color palettes and animated visual overlays such as matrix rain, floating embers, snowfall and scanlines let you personalize the look. Instant push notifications keep you informed even when the app is closed. The self-hosted architecture gives you control over infrastructure, membership and data with no telemetry or third-party tracking.

Advantages

Amni-Haven - Haven Client App prioritizes privacy and server ownership, letting communities and teams decide where data is stored and who has access. Strong on-device cryptography combined with optional encrypted backups provides a balance between security and recoverability. The app offers a broad set of communication tools—text, images, files, GIFs, reactions, threads, voice and video—to meet common collaboration needs. Extensive customization through themes, custom server emojis, role-based profiles and channel management helps adapt the client to your community.

Disadvantages

Using Amni-Haven - Haven Client App requires a running Haven server, so you must host or have access to a server to use the app. Self-hosting can demand technical knowledge for setup, configuration and maintenance. The app is compatible only with Android 8.0 (Oreo) or later, so older devices are not supported.