FluffyChat vs SimpleX Chat

FluffyChat is a free, ad-free open-source messaging app built on the Matrix protocol. It runs on Android, iOS, Linux, and the web, supporting private and group messages, voice messages, pictures, videos, and location sharing. The feature list also includes polls, custom stickers, spaces, moderation tools, multi-device support, and public chats with tens of thousands of participants. Direct calls and video conferences use Matrix RTC-compatible encryption. Private chats have end-to-end encryption enabled by default through Vodozemac. The app works with other Matrix clients such as Element, Nheko, Cinny, and NeoChat. FluffyChat caches server data locally and attempts SQLCipher encryption, keeping the key in device secure storage. Push notifications use Firebase Cloud Messaging or UnifiedPush. FluffyChat does not host messaging servers, so the chosen server’s data-protection terms apply.

SimpleX Chat is a messaging application for the SimpleX platform, with apps for Android, iOS, Linux, macOS, and Windows. It supports encrypted text with Markdown and editing, media and file sharing, decentralized groups, voice messages, disappearing messages, and audio and video calls. The network does not assign profile identifiers such as phone numbers or usernames. Messages and metadata use end-to-end encryption with continuous post-quantum key exchange. Four servers participate in each chat so relay servers cannot see which IP addresses communicate. Profiles, contacts, and messages remain in a portable encrypted database on user devices; relay servers hold encrypted messages only until delivery. Users may operate their own servers and still reach people using preconfigured servers. Developers can build bots and integrations using protocol SDKs; the TypeScript SDK connects to the Chat CLI over a WebSocket API. A phone or tablet can link to the desktop app only when both devices share a local network. Disappearing messages and recipient-side deletion are not guaranteed when a recipient device is offline or modified. The free plan costs nothing.