SecretChat is available on Android. It’s built around private rooms and messages encrypted on participants’ devices before transmission.
We care about privacy, but a strong label is not evidence. Calling something the most secure app would require a comparison and independent scrutiny that we don’t have.
What the app does
Messages use AES-256-GCM encryption before transmission. Received history is encrypted locally with Android Keystore. The mobile service keeps no cloud chat archive or administrator decryption key.
Private room invitations unlock the conversation. Optional biometric locking adds another barrier at the device.
What that doesn’t mean
The service still handles operational and account information. An administrator can see account and room metadata. Providers may process request metadata. A compromised device or someone sharing a room invitation changes the situation.
Offline phones can miss live messages. Clearing application data or uninstalling the app removes local history. Signing back in does not restore a cloud message archive.
Keep the limits visible
SecretChat is a beta product without an independent security audit. On-device encryption is a concrete feature. Complete anonymity or immunity from every threat is not a promise we can make.
The product page includes installation instructions, the release checksum and a fuller explanation of message handling. We’ll keep that explanation alongside the download.