GPS Race Timer
GPS Race Timer Summary
GPS Race Timer is a ad-supported, with in-app purchases iOS app in Tools by Thomas Hagenau. Released in Aug 2018 (7 years ago). It has 7.3K ratings with a 4.50★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 32.2K monthly active users and generates around $<10K monthly revenue (26% IAP / 74% ads). Store metadata: updated Nov 18, 2025.
Recent activity: 13 new ratings this week View trends →
Data tracking: SDKs and third-party integrations were last analyzed on Apr 19, 2025.
Store info: Last updated on App Store on Nov 18, 2025 .
4.5★
Ratings: 7.3K
Screenshots
App Description
Measure acceleration times such as 0–60 mph, 60–120 mph and 1/4 mile directly with your iPhone — accurately and without extra hardware.
The app is designed so it doesn’t need to be operated while driving; you just set everything up beforehand while stationary.
Measurements then start automatically — when the target speed is reached or when a start is detected.
You can save results locally on your iPhone and, if needed, export them or transfer them to other devices.
Preset timers: 60 ft, 1/8 mile, 1/4 mile, 1/2 mile, 1 mile, 0 – 60 mph, 0 – 120 mph, 50 – 75 mph, 60 – 120 mph, 0 – 100 km/h, 0 – 200 km/h, 80 – 120 km/h, 100 – 200 km/h. All timers are, of course, fully adjustable.
The free version measures up to two times per run.
How to use the app:
Check the timer settings on the start screen. If everything looks good, place your iPhone in the car where it has good GPS reception and is held securely, then start the acceleration test.
You can adjust the timer configuration in the Settings screen (just tap the relevant timer). Then return to the race screen and follow the previous instruction.
Optional PRO version (in-app purchase):
1. Up to four timers in parallel (instead of two)
2. Precise determination of elevation differences
3. Simulation of a Sportsman start and reaction-time measurement
4. No ad banners