The Sprint Timer
That Tracks Your Rest

One big button logs every rep and every recovery, with heart rate for the whole session. No setup, no workout builder. Start a session and sprint.

Built for Sprint Sessions

Rep times, recovery times, and heart rate. Everything a sprint session produces, logged with one button.

One Big Button, Zero Setup

Open the app, start a session, and sprint. Tap once when you take off and once when you finish the rep. The button fills half the screen, so you can hit it at the end of a rep without looking. No workout builder, no preset intervals, nothing to configure at the track.

9:41
200m
162 BPM
00:26.84
Sprint in Progress
STOP

Your Rest Is Data Too

Trackreps records the recovery between reps automatically. Every session shows rep times and rest times side by side, so you can see exactly how long you rested and how consistent your recoveries were. A Live Activity keeps the running session on your Lock Screen between reps.

9:41

Session

200m reps

Rep 127.12
Recovery2:41
Rep 226.84
Recovery2:58
Rep 327.05
Recovery3:12
Rep 426.6...
End Session & Save

Heart Rate for the Whole Session

Connect any Bluetooth heart rate strap and Trackreps captures your heart rate through the reps and the recoveries. See how far your heart rate drops between reps. As your fitness improves, it drops faster, and you can watch that happen from session to session.

9:41

6 x 200m

Tuesday • 6:30 PM

CARDIAC RESPONSE
Rep 1Rep 2Rep 3Rep 4
Peak HR
191
Avg HR
172
Drop between reps
-38 BPM

Track, Road, or Hill

Pick a rep distance or run in open mode with live GPS distance and pace. Built for track sessions, and just as useful for hill sprints and road intervals like the Norwegian 4x4.

9:41
Open
148 BPM
01:24.60
412m
Distance
3:07 /km
Pace
STOP

Ready to Run Faster?

Stop juggling a stopwatch and a notes app. Trackreps logs your reps, your recoveries, and your heart rate while you train.

Requires iOS 18.2 or later • Works with any Bluetooth heart rate strap • Apple Watch support is on the roadmap