Stopwatch

Stopwatch as quick tileApache-2.0

Compose Stopwatch

Stopwatch in the Material You theme, designed for ease of use and best featuresApache-2.0

Giant Stopwatch

Stopwatch and clock with giant digitsMIT

Tranquil Stopwatch

Stopwatch with current time display for long, non-interactive sessions.GPL-3.0-only

DataStopwatch

Stopwatch, but for data usageGPL-3.0-or-later

Clock

Alarm, clock, timer and stopwatch modeApache-2.0

Chrono

Modern and powerful clock, alarms, timer and stopwatch.GPL-3.0-or-later

Fourth Tools

Useful tools appGPL-3.0-or-later

Hrm

Simple bluetooth low-energy heart rate monitorMIT

Pictionary Generator

A Pictionary-ish Word GeneratorGPL-3.0-or-later

Clock You

Privacy focused clock app build with MD3GPL-3.0-only

Boardgame Clock (Privacy Friendly)

(SECUSO) Boardgame Clock offers timers for boardgame time trackingGPL-3.0-or-later

TimeR Machine

A highly customizable interval timerGPL-3.0-only

Timety

Offline-first productivity, focus, and habit tracking.GPL-3.0-only

Workout Time!

An app for managing and performing timed workoutsGPL-3.0-or-later

Fossify Clock Beta

Handy, lightweight, open-source clock app with essential features.GPL-3.0-only