GPS Race Timer vs Speed Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GPS Race Timer
Accurately measure vehicle acceleration times like 0-60 mph and 1/4 mile using your iPhone's GPS. Set up timers beforehand and let the app automatically start measurements when speed targets are met or motion is detected. Save, export, and transfer your performance data easily.
- Measure 0-60 mph, 60-120 mph, 1/4 mile
- Automatic start detection
- Save and export results
- Preset and adjustable timers
- No extra hardware required
- Optional PRO version features
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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
Speed Lab
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Speed Lab uses advanced GPS and sensor data to measure your vehicle's true capabilities. Whether you are testing a new tune or just curious about your daily drive, get accurate metrics instantly. Key Features: Acceleration Tests: Measure 0-100 km/h and 0-200 km/h times automatically. Braking Analysis: Test your stopping power with the 100-0 km/h braking test. G-Force Meter: Monitor lateral and linear G-forces during your drive. Trip History: Save and review your past performance records. Real-Time Dashboard: Clear, digital speedometer and max speed tracker. Download Speed Lab now to analyze your driving performance!
Screenshots
Verdict
The clearest difference is in-app purchases: Speed Lab at none against GPS Race Timer's 1. Speed Lab also leads on ads (none vs shown) and update cadence (every 2 months vs every 7 months). GPS Race Timer's advantage is iOS requirement (12.2 vs 15.6). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. GPS Race Timer sells 1 one-off in-app purchase. Speed Lab asks for nothing beyond the download.
GPS Race Timer ships an update every 7 months, Speed Lab every 2 months. The most recent releases landed on October 3, 2026 and September 26, 2026 respectively.
| Parameter | GPS Race Timer | Speed Lab |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2.7K ratings) — better | — |
| Positive reviews | 34.7% of reviews | — |
| Number of ratings | 2.7K — better | — |
| Update frequency | Every 7 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.2 — better | 15.6 |
| Further details — not scored | ||
| Size | 50 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Hagenau | ABDURRAHMAN ARICAN |
Bugs and requests
GPS Race Timer
Reported bugs
4 issues- Timer doesn't reset properly
- App crashes on startup
- Significant GPS/speed detection delays
- Recorded times do not match actual performance
Requested features
4 requests- Add 60ft and 1/8 mile times
- Automatic start/stop of timer
- Manual start option for timer
- Improved accuracy and consistency
Speed Lab
Not enough reviews yet to summarise bugs or requests.
In-app purchases
GPS Race Timer
- PRO$4.99
Speed Lab
No in-app purchases








