The apps

Each one exists because of a specific complaint about an app that already existed. All free, all small enough to install on a metered connection, all working without an account.

StudyPomo

Live on Google Play

A Pomodoro timer that keeps counting when the screen goes off.

Built against: Timers that stop counting when Android reclaims the process, losing the session.

v1.0.0 since 9 August 2026 about 26 MB on a modern phone Android 7.0 and up No accountTimer and stats work offlineSix ambient sounds that layer

Get it on Play What we wrote about it

Ponderanda

Built, not yet submitted

One arithmetic ladder a day. Five problems, one attempt, the same for everyone.

Built against: Brain-training apps cap free play at about three games a day, on top of cognitive claims the evidence does not support.

Android 7.0 and up No accountEvery past day stays playable, freeThe daily ladder carries no ads

StudyPomo, written up

Rebuild note
A foreground service, a wake lock, and a TECNO that ignores both
14 Aug 2026 Sixteen builds of StudyPomo 1.0.0, and a foreground service measured dying on a TECNO KM7.
Rebuild note
The release build is not the app you tested
14 Aug 2026 Two release-only failures in StudyPomo, and the keep rules that are still in the shipped 1.0.0 mapping.

StudyPomo

Ponderanda

StudyPomo, written up

A foreground service, a wake lock, and a TECNO that ignores both

The release build is not the app you tested