Delta Chat vs Dino
Delta Chat
delta.chatDino
dino.imSide by side
| Figure | Delta Chat | Dino |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 1 |
| Spec score · Encrypted Messaging Apps | 8.3 (#4) | 8.3 (#5) |
| Spec score · Secure Messaging Apps | 8.2 (#11) | 8.2 (#12) |
| 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. | Dino supports audio and video calls, including group calls; its release announcement describes calls as end-to-end encrypted and peer-to-peer where possible. |
| Encryption | All messages are end-to-end encrypted by default, and attachments and their metadata are included in the encryption. | Dino supports end-to-end encryption using OMEMO or OpenPGP; the site says only the user and chat partners can read encrypted messages. |
| Messaging | The app supports multi-profile and multi-device use, and relays messages through secure, interoperable chatmail relays. | Dino is built on XMPP, a decentralized standard for instant messaging, and supports communication through a federated network. |
| Platforms | The download page lists Android, iPhone/iPad, macOS, Windows, GNU/Linux, and a community-driven Ubuntu Touch effort. | The distribution packages page lists release packages for Arch, Debian, Fedora, openSUSE, Ubuntu, Alpine, Gentoo, Guix, NixOS, Void Linux, FreeBSD, and OpenBSD. |
| Product | Delta Chat is a reliable, decentralized and secure instant messaging app for mobile and desktop. | Dino is an open-source desktop chat client for Jabber/XMPP focused on a clean, reliable experience and privacy. |
| Support | The site links to a Delta Chat forum for support and feedback. | Users can ask questions or share ideas in the XMPP chat room at [email protected] and report bugs or feature requests on the issues page. |
Plans
In their own words
Delta Chat
Delta Chat is a free, open-source instant messaging app for mobile and desktop, with support for self-hosting. It runs on Android, iOS, Linux, macOS and Windows, and supports multiple profiles and devices. Messages travel through secure, interoperable chatmail relays and are end-to-end encrypted by default, including attachments and their metadata. Delta Chat uses a subset of OpenPGP with Secure-Join and Autocrypt. Servers can still see sender and receiver addresses and message size; other message, contact and group metadata is encrypted. Chats can include interactive web apps for gaming and collaboration. Android and iOS audio and video calls use peer-to-peer WebRTC, but a March 2026 post said the feature was still behind a debug setting. A classic email address can act as a relay only if used exclusively by chatmail clients, and classic email providers generally do not support push notifications. The FAQ says there are no immediate plans for a web client. The project links to a forum for support and feedback.