# SimpleX Chat

> privacy preserving communication app

**Wikidata**: [Q120496333](https://www.wikidata.org/wiki/Q120496333)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/SimpleX_Chat)  
**Source**: https://4ort.xyz/entity/simplex-chat

## Summary
SimpleX Chat is a privacy-preserving communication app designed to protect user data through end-to-end encryption and minimal metadata collection. It is free and open-source software, available on multiple platforms including Android, iOS, Windows, macOS, and Linux. The app prioritizes security by eliminating user accounts and relying on the Simplex Messaging Protocol.

## Key Facts
- **Free and open-source software** licensed under AGPL-3.0, allowing users to modify and distribute the code.
- **Available on** Android, iOS, Windows, macOS, and Linux operating systems.
- **Uses the Simplex Messaging Protocol** for secure, serverless communication without relying on centralized infrastructure.
- **First public release** on December 27, 2020 (version 0.1.0), with ongoing updates through 2021.
- **Tor integration** via an onion service website for anonymous access.
- **No user accounts or phone numbers** required for messaging, enhancing anonymity.
- **App Store ID**: 1605771084; **Google Play ID**: chat.simplex.app.
- **Translation platform**: Hosted on Weblate for community contributions.

## FAQs
### Q: Is SimpleX Chat free to use?
A: Yes, SimpleX Chat is free and open-source software with no hidden costs or subscriptions.

### Q: What platforms does SimpleX Chat support?
A: It runs on Android, iOS, Windows, macOS, and Linux, ensuring cross-platform compatibility.

### Q: How does SimpleX Chat protect user privacy?
A: It uses end-to-end encryption, avoids collecting metadata, and operates without user accounts or centralized servers.

## Why It Matters
SimpleX Chat addresses growing concerns about data privacy in digital communication. Unlike mainstream messengers, it eliminates reliance on centralized servers and user accounts, reducing vulnerability to surveillance or data breaches. By prioritizing anonymity and security through protocols like the Simplex Messaging Protocol, it offers a robust alternative for users seeking to protect their communications. Its open-source nature fosters transparency and community scrutiny, ensuring the app adheres to its privacy-focused principles. In an era of widespread data exploitation, SimpleX Chat provides a critical tool for secure, private interactions.

## Notable For
- **Default end-to-end encryption** with no option to disable it, ensuring all messages are protected by default.
- **No user accounts or identifiers**, allowing anonymous communication without phone numbers or email addresses.
- **Tor onion service integration**, enabling access via the dark web for enhanced anonymity.
- **Self-hostable infrastructure**, giving users full control over their data and servers.
- **Free software licensing** (AGPL-3.0), promoting transparency and community-driven development.

## Body
### Platforms and Availability
SimpleX Chat supports **Android**, **iOS**, **Windows**, **macOS**, and **Linux**. It is distributed through the Google Play Store, Apple App Store, and direct downloads from its official website. The app also operates a Tor onion service at `http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion`.

### Protocol and Security
The app uses the **Simplex Messaging Protocol**, a serverless communication framework that minimizes metadata exposure. Key security features include:
- **End-to-end encryption** for all messages.
- **No centralized servers** storing user data.
- **Anonymous communication** without requiring user accounts or identifiers.

### Licensing and Development
SimpleX Chat is licensed under **AGPL-3.0**, ensuring users have the freedom to run, study, modify, and distribute the software. Its source code is hosted on **GitHub** and **Git.SimpleX.Chat**, with active community contributions. Translations are managed through Weblate.

### Version History
Notable releases include:
- **0.1.0** (December 27, 2020): Initial public release.
- **0.5.0** (December 8, 2021): Introduced improved encryption and group chat features.
- Regular updates through 2021 focused on security enhancements and platform compatibility.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "SoftwareApplication",
  "name": "SimpleX Chat",
  "description": "Privacy-preserving communication app with end-to-end encryption and no user accounts.",
  "url": "https://simplex.chat",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q12345678",
    "https://en.wikipedia.org/wiki/SimpleX_Chat"
  ],
  "operatingSystem": "Android, iOS, Microsoft Windows, macOS, Linux",
  "applicationCategory": "https://schema.org/CommunicationsApplication",
  "downloadUrl": "https://simplex.chat/downloads/",
  "softwareVersion": "0.5.0",
  "license": "https://spdx.org/licenses/AGPL-3.0-only.html",
  "author": {
    "@type": "Organization",
    "name": "SimpleX Chat Team"
  }
}

## References

1. [Source](https://github.com/simplex-chat/simplex-chat/blob/stable/LICENSE)
2. [2025](https://github.com/EvanLi/Github-Ranking/blob/master/Data/github-ranking-2025-07-06.csv)
3. [Source](https://simplex.chat/downloads/)
4. [Release 0.1.0. 2020](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.1.0)
5. [Release 0.2.0. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.2.0)
6. [Release 0.2.1. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.2.1)
7. [Release 0.2.2. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.2.2)
8. [Release 0.3.0. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.3.0)
9. [Release 0.3.1. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.3.1)
10. [Release 0.4.0. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.4.0)
11. [Release 0.4.1. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.4.1)
12. [Release 0.4.2. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.4.2)
13. [Release 0.5.0. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.5.0)
14. [Release 0.5.1. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.5.1)
15. [Release 0.5.2. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.5.2)
16. [Release 0.5.3. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.5.3)
17. [Release 0.5.4. 2021](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.5.4)
18. [Release 0.5.5. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v0.5.5)
19. [Release 1.0.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.0.0)
20. [Release 1.0.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.0.1)
21. [Release 1.1.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.1.0)
22. [Release 1.1.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.1.1)
23. [Release 1.2.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.2.0)
24. [Release 1.2.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.2.1)
25. [Release 1.3.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.3.0)
26. [Release 1.3.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.3.1)
27. [Release 1.3.2. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.3.2)
28. [Release 1.3.3. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.3.3)
29. [Release 1.4.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.4.0)
30. [Release 1.4.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.4.1)
31. [Release 1.5.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.5.0)
32. [Release 1.6.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v1.6.0)
33. [Release 2.0.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v2.0.0)
34. [Release 2.0.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v2.0.1)
35. [Release 2.1.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v2.1.0)
36. [Release 2.2.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v2.2.0)
37. [Release 3.0.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v3.0.0)
38. [Release 3.0.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v3.0.1)
39. [Release 3.1.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v3.1.0)
40. [Release 3.2.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v3.2.0)
41. [Release 3.2.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v3.2.1)
42. [Release 4.0.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v4.0.0)
43. [Release 4.0.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v4.0.1)
44. [Release 4.1.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v4.1.0)
45. [Release 4.1.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v4.1.1)
46. [Release 4.2.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v4.2.0)
47. [Release 4.2.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v4.2.1)
48. [Release 4.2.2. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v4.2.2)
49. [Release 4.3.0. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v4.3.0)
50. [Release 4.3.1. 2022](https://github.com/simplex-chat/simplex-chat/releases/tag/v4.3.1)