Independent Android apps

Apps that run on your device, not on my servers

Two of them so far, both built the same way: no account to create, no analytics SDK, no backend for your data to sit in. What the app does, it does on the hardware in your hand.

SSH UI

Android phone and tablet

A tablet-first SSH terminal with a real remote editor, diffs, tmux tabs and hardware-backed keys.

WatchCalc

Wear OS smartwatch

A standalone calculator for Wear OS: 32-digit precision, scientific functions and statistics, entirely on the watch.

What they have in common

These are not marketing lines. They are constraints the apps are built under, and each one is checkable from the outside.

Nothing phones home

No sign-up, no ads, no analytics or crash-reporting SDK. I operate no servers, so there is no place for your data to arrive even by accident.

Permissions you can count

WatchCalc requests no permissions at all - it does not hold the Internet permission, so nothing you type into it can leave the watch. SSH UI asks for network access and opens connections only to the hosts you configure.

Keys stay in hardware

SSH UI generates its keys inside Android's keystore, in StrongBox or the TEE where the device offers one, marked non-exportable. The app cannot read your private key, and neither can anything that copies its data.

Built small

Release builds are minified and resource-shrunk, native code is size-optimised, and neither app pulls in a framework it does not use. Downloads are measured in single-digit megabytes.

Found a bug, or want something added?

Both apps are actively developed and I read everything that arrives. Write to vadim.sukhomlinov@gmail.com.