Pulsekit

1. Open this page on the phone and tap Download.
2. Chrome will ask to allow installing unknown apps — this is a debug build, not a Play Store one.
3. Open Pulsekit and grant the notification permission when it asks.

Android 13 (API 33) or newer. The status bar chip and the promoted lock-screen card are Android 16 features — on 13 to 15 the same activities render as ordinary ongoing notifications.

• Start Progress, then hit Advance all a few times and watch the status bar chip track the percentage.
• Start Timer — the countdown ticks on its own. That whole 15 minutes costs one notification post, because the system owns the clock.
• Hit Advance all with the timer running to pause it, and again to resume. The clock does not restart, because a push without a duration keeps the window it already had.
• Start all six types. Only four activities may run at once, so the fifth ends the one that has gone longest without an update — the same cap the protocol enforces server-side.

Version	0.1.0 (debug, unsigned for release)
Package	co.pulsekit.app
Min / target SDK	33 / 36
Tests	66 passing — 48 JVM, 18 on an Android 16 runtime
Network access	Only to fire a webhook button an activity defines. No telemetry, no accounts, no keys in the APK.