FluffyChat vs imo

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.

imo is a communication app for internet calls and messaging, available on Android, iOS, macOS, web, and Windows. It offers HD audio and video calls, including international calls, and group video calls for up to 20 participants with no fixed time limit. Chats support real-time messages, photos, videos, voice recordings, and group conversations; its Big Group feature supports up to 5,000 members. Stories hold photos, videos, and text updates for 24 hours. Listed privacy features include end-to-end encryption, Time Machine, and disappearing messages, while account controls include two-step verification and spam blocking. Encryption coverage is mixed. Instant message translation is available, and the privacy policy says Google Translate may provide it. That policy also says imo collects usage data, including communication partners, times, and message content. On iOS, imo integrates with Siri and can access iCloud Drive for file sharing. The app is free, though mobile carrier data charges may apply to internet calls.