Download the Sennak app

Android

1. 1Download the install file with the button below.
2. 2If your phone asks, allow installs from this source.
3. 3Open the downloaded file to finish installing.

These steps are for the FIRST install only. After that the app updates itself: it checks for a newer release, downloads it, verifies it, and installs it in place — your data and your session stay exactly as they are.

Running this file over an installed copy updates it in place and keeps you signed in — nothing is lost. If the app is not installed, this installs it fresh.

Windows

1. 1Download the installer with the button below.
2. 2Windows SmartScreen will warn you — choose “More info”, then “Run anyway”.
3. 3Follow the installer — Sennak appears in your Start menu.

The same file installs AND updates: run it over an earlier copy and it upgrades in place — same folder, same shortcut, one entry in Apps & Features, and you stay signed in. Requires Windows 10 or 11. The installer is not signed by a verified publisher yet, which is why SmartScreen warns every time; that is expected, not a sign the file is unsafe.

One file covers both the first install and every update; you never need to remove the old copy, and you will not end up with two Sennaks on the machine.

iPhone and iPad

1. 1Open this page in Safari specifically.
2. 2Tap the Share button in Safari’s toolbar.
3. 3Choose “Add to Home Screen”, then “Add”.

On iOS, Sennak runs as an installed web app — there is no App Store build yet, and this is the only way today. The installed app receives real push notifications on iOS 16.4+, and it updates itself with no action from you.