OnTrack Run Interval Timer

Run your track intervals by ear.

OnTrack is an audio-first interval timer for track runners. Set your reps, rests, and target pace — then put your phone away. OnTrack beeps you through every rep, every recovery, and every checkpoint, so your eyes stay on the track instead of your screen.

No subscription. No ads. No account. Premium is a single one-time purchase.

HEAR EVERY REP
• Countdown beeps before every phase change, and a clear cue when it switches
• Distance checkpoint cues inside each rep — every 100m, 200m, or 400m, timed from your target pace
• Works alongside your music

BUILT FOR THE TRACK
• Warm-up, main set, and cool-down in a single preset
• Repeat blocks for sessions like 8×1000m with 400m recovery
• Set each phase by time, pace, or distance
• Pace checkpoint table: see your split at every 100m before you start

New to OnTrack? Your first launch includes four ready-made sub-3 marathon workouts — Yasso 800s, 1K repeats, 2K repeats and a tempo run. Edit the paces to match your level.

GLANCEABLE WHEN YOU DO LOOK
• A full-screen color for every phase — warm-up, interval, rest, cool-down
• A huge timer with high-contrast text that stays readable in bright sunlight
• Hold-to-pause and hold-to-stop, so a bump in your pocket never ends your session

PRIVATE BY DESIGN
• No GPS, no sign-up, no account
• Your presets and workout summaries are stored on your device
• No ads and no analytics tracking your training

FREE AND PREMIUM
Free: build and run complete workouts with every block type while the app is open.
Premium (one-time purchase): keep the workout running — with every audio cue — when the screen is off or the app is in the background.

PERFECT FOR
• Track repeats like 8×400m, 6×800m, or 5×1000m
• Tempo and goal-pace sessions
• Runners who want a dedicated, distraction-free audio pacer alongside their watch

GET STARTED
1. Start from a ready-made workout or create your own preset: warm-up, main set, cool-down
2. Check your pace checkpoints
3. Hit start, pocket your phone, and run by ear