CLUSTER INTERVAL-TRAINING-HIGH · 49 ENTRIES · EARLIEST ENTRY 2009-12-23
Workout interval timer apps
This cluster consists of interval and round timer apps for structured training (Tabata, boxing, martial arts, breathing exercises, etc.), centered on configurable work and rest phases with audio and vibration cues. The dated entry record shows a long, sparse tail: one entry per month scattered across roughly 17 years from 2009 to 2026, with a slight uptick in April-May 2026 when two entries appear each month. On traction, powerbreathe-pacer leads by a small margin, with 1 star, while other named leaders have no stars.
Entry timeline
ENTRY TIMELINE
Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.
Members by activity
Activity signals, not revenue.
Build origin · 3 ai-built · 6 unlabelled
Operator · 3 hobby · 1 indie · 5 unlabelled
Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 9 listed below. Unlabelled means nothing has decided yet — not that the answer is small.
- 41My Interval Timer0★unknownliveWeb app that tracks work and rest interval periods to help users pace themselves during workouts.
- 42Activity Trove0★unknownliveA web app that provides warm-up exercises and icebreaker activities for meetings and events.
- 43Gym Rat0★unknownlivehobbyWeb app that delivers customizable high-intensity interval training timers synced with a personal Notion workspace for tracking workouts.
- 44Be Fit and Strong — Training That Adapts to Your Schedule0★unknownliveindieAdaptive training app that adjusts workout schedules to fit busy professionals' changing calendars, offered via a free trial.
- 45The Golden Six0★unknownlivehobbyWorkout app or website for practicing the Golden Six exercises.
- 46Rep Timer0★unknownlivehobbyWeb app that times exercise repetitions and rest intervals for workout sessions.
- 47GymFire - Periodization Training0★unknownliveai-builtWeb app that creates periodized training plans from calendar events and seasonal performance goals.
- 48Sport Timer0★unknownliveai-builtWeb app that provides a timer for tracking durations during sports training sessions or games.
- 49Krav Maga Darwin Timer0★unknownliveai-builtWeb app timer for Krav Maga training with configurable rounds and intervals.
Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.