Conversations vs Delta Chat
Conversations
conversations.im
Delta Chat
delta.chatSide by side
| Figure | Conversations | Delta Chat |
|---|---|---|
| Price from | €1/mo | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 2 | 1 |
| Spec score · Encrypted Messaging Apps | 7.8 (#19) | 8.3 (#4) |
| Spec score · Secure Messaging Apps | 7.8 (#19) | 8.2 (#11) |
| Calls | Conversations supports end-to-end encrypted audio and video 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. |
| Encryption | The app supports end-to-end encryption with OMEMO or OpenPGP. | All messages are end-to-end encrypted by default, and attachments and their metadata are included in the encryption. |
| Headquarters | Siemensstraße 1, 51145 Köln, Germany | Freiburg, Germany |
| Integrations | The app can synchronize with the Gajim and Dino desktop clients and integrate with the Android address book. | Delta Chat supports chatmail relays and in-chat web apps, and can use a classic email address as a relay with limitations. |
| Messaging | The app supports sharing images and files, group chats, location sharing, voice messages and emoji reactions. | The app supports multi-profile and multi-device use, and relays messages through secure, interoperable chatmail relays. |
| Product | Conversations is a Jabber/XMPP client for Android 6.0+ smartphones. | Delta Chat is a reliable, decentralized and secure instant messaging app for mobile and desktop. |
| Support | Professional support for company use and setup assistance can be purchased by contacting maintainer Daniel Gultsch. | The site links to a Delta Chat forum for support and feedback. |
Plans
Conversations
- XMPP domain hosting — 1 user€12 a year
- Google Play appPrice not published
In their own words
Conversations
Conversations has no write-up on Specifiction yet; its figures are above.
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.