There is no signed .dmg or Mac App Store build yet. What is available today is the unsigned archive above. macOS will refuse to open an unsigned app until you allow it in System Settings → Privacy & Security, or you can remove the quarantine flag:

xattr -d com.apple.quarantine Testgram.app

Testgram for macOS is built from the same TDesktop codebase as the Windows and Linux builds, under the GPL v3 license.

Our changes and build instructions are on GitHub.

Installed clients check for updates on their own against the update server.

Version history

Latest stable

Desktop build 6007008, published on this server.
Updates are delivered automatically to installed clients.

Building from source

Clone testgram-tdesktop and follow the build instructions there.