X2Chat vs SimpleX Chat
Both are end-to-end encrypted messengers. The differences are in what an account requires, what is encrypted and what you can verify.
Written by the X2Chat team. Facts about other apps are taken from their public documentation as of September 2026; tell us at privacy@x2chat.com if something is outdated.
| X2Chat | SimpleX Chat |
|---|
| Phone number required | No | No |
|---|
| User identifiers at all | 6-char ID | No |
|---|
| E2E messages | Yes | Yes |
|---|
| E2E calls | Yes | Yes |
|---|
| Forward secrecy | No | Yes |
|---|
| Open source | No | Yes |
|---|
| Independent audit | No | Yes |
|---|
| Bots / mini-apps | Yes | Bots via SDK |
|---|
| Multi-device | Yes | Limited |
|---|
| Ease for non-technical users | Yes | Steeper |
|---|
Where X2Chat is ahead
- Simpler for ordinary people: a short ID, invite links, one account on several devices.
- Bots and mini-apps, group links, translation.
Where X2Chat is behind
- SimpleX has no user identifiers and hides metadata by design; X2Chat has an ID and server-visible metadata.
- SimpleX is open source, audited, and has forward secrecy.
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