PulseTime

PulseTime turns the time into vibration patterns you can learn by feel, using an Android phone and Wear OS watch.

Download the test builds

The phone companion and the Wear OS watch app are separate APKs. Install each one on its own device.

Install on Android phone Install separately on Wear OS watch

Google Play beta: Prefer Play Store updates to sideloading? Join the Coolhand beta group first (I’d really appreciate it). I’ll add this app’s opt-in link here when its Play beta is ready.

Install: Download each APK on its intended device, open the file, and allow installs from this source if Android asks.

Start here

Open the PulseTime companion and run Calibration first, then pair the Wear OS build to begin learning the haptic clock.

Wear OS

The phone download does not install anything on a watch. Sideload the Wear OS APK onto a watch running Android 11 (API 30) or later, using wireless debugging or ADB. Google Play closed testing has not started.

Test build: version 0.3.0 for the phone (10000003) and the watch (20000003). Verify the SHA-256 checksums.