Delta Chat
6.8#10 in encrypted messaging appsFree planFree planAndroidiOSLinuxmacOS
VisitDelta Chat vs WhatsApp
What both publish
| Fact | Delta Chat | |
|---|---|---|
| Calls | Audio and video calls on Android and iOS use peer-to-peer WebRTC with signaling through Delta Chat messages; the March 2026 post says the feature was still behind a debug setting. | Voice and video calls are end-to-end encrypted, have no time limits, and work one-to-one or in groups across iOS, Android, and web. |
| Encryption | All messages are end-to-end encrypted by default, and attachments and their metadata are included in the encryption. | WhatsApp says end-to-end encryption prevents anyone else, including WhatsApp, from reading personal messages or listening to calls. |
| Headquarters | Freiburg, Germany | LinkedIn lists WhatsApp headquarters at Menlo Park, California. |
| Messaging | The app supports multi-profile and multi-device use, and relays messages through secure, interoperable chatmail relays. | Chats support text formatting, stickers, GIFs, emoji reactions, voice notes and video notes. |
| Platforms | The download page lists Android, iPhone/iPad, macOS, Windows, GNU/Linux, and a community-driven Ubuntu Touch effort. | Downloads are listed for iPad, Windows, Mac, Android, and iPhone, and the site also offers browser access. |
Delta Chat plans
- Delta ChatFree
WhatsApp plans
- WhatsAppFree
- WhatsApp Business appFree
- WhatsApp MessengerFree
- WhatsApp Business PlatformPriced on request
Pick Delta Chat if…
Delta Chat suits people seeking a free messaging app across mobile and desktop platforms, including those who want end-to-end encryption by default. It may not suit people who need a web client or dependable push notifications through a classic email provider.
Pick WhatsApp if…
WhatsApp suits people who want a free way to message and call across phones, computers, and the web. It also offers business features for showcasing products and services and building customer relationships.