Comparison

GPS Race Timer vs STAR Race Timer | 0

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full 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

About

STAR Race Timer | 0

Measure your car's acceleration from 0 to 60 mph or over specific distances without expensive equipment. The app supports multiple measurement modes and allows for safe, stationary configuration with automatic start detection during rolling starts. All results are stored locally for later analysis with speed graphs and route mapping.

Highlights
  • Unlimited acceleration measurements
  • Speed-based and distance-based modes
  • Local data storage and analysis
  • Route saving and map view
  • Rolling start detection
  • Real-time speed information
  • Dark mode support
Features
Read full description

MEASURE YOUR CAR'S ACCELERATION — WITHOUT EXPENSIVE GPS TRACKERS! With STAR, anyone can measure how quickly their car accelerates. Time how long your car takes to reach a certain speed, or how long it takes to cover a set distance such as the quarter mile — all using nothing but your phone. Configure your runs safely at a standstill, and with rolling starts the app automatically detects the moment you pull away and begins measuring for you. You can even run multiple measurements at the same time. Every result is stored locally on your iPhone so you can revisit it later — no data is ever transmitted to us. Each run comes with analysis tools like graphs, top and average speed, a map of the route you drove, and more. —— FEATURES AT A GLANCE —— • YOUR GARAGE: Add every car you drive — complete with a photo and details like make, model, year, drivetrain, power, and weight. STAR tracks each car's runs and records separately. • STATS & PERSONAL BESTS: See each car's best 0–60, top speed, quarter mile, averages, and run counts at a glance — and watch how every new run stacks up against your personal best. • UNLIMITED MEASUREMENTS: Want to time the quarter mile and 0–60 in the same run? No problem — configure as many measurements as you like at once, and STAR handles the rest. • DIFFERENT MEASUREMENT MODES: Speed-based or drag race (distance) — choose the modes that fit the run you want to make. • ROLLING STARTS: Set everything up safely while stationary and let the app do the work — your measurement begins automatically the instant you start driving. • IN-DEPTH ANALYSIS: Every run is saved locally and can be explored afterwards with a speed graph, top and average speed, route details, and more. • ROUTE MAP: The route you drove is saved with each run, so you can revisit it later on a map. • HISTORY, ORGANIZED: Browse all your runs in the archive and filter by car to find exactly what you're looking for. Delete any run you no longer need. • LIVE SPEED & GPS INFO: Keep your current and top speed in view throughout every run, and check your live GPS satellite count to confirm a strong signal before you launch. • DARK MODE: Driving at night? STAR follows your iPhone's appearance settings and includes a dark mode with true blacks — easy on your eyes and your battery. • PRIVATE BY DESIGN: All of your data stays on your iPhone. Nothing is sent to us. Have an idea for a new feature or a suggestion to make STAR even better? Write to us at hi@sunnyside.dev — we'd love to hear from you! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

GPS Race Timer4 screens
STAR Race Timer | 04 screens

Verdict

The call

The clearest difference is rating: GPS Race Timer at 4.5 against STAR Race Timer | 0's 1.0. GPS Race Timer also leads on review sentiment (35% vs 0%) and ratings volume (2.7K vs 1). STAR Race Timer | 0's advantage is update cadence (every 2 months vs every 7 months). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. GPS Race Timer sells 1 one-off in-app purchase and STAR Race Timer | 0 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

GPS Race Timer holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: GPS Race Timer has 2.7K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 35% of GPS Race Timer's written reviews are positive against 0% of STAR Race Timer | 0's.

UpkeepUpdate frequency

GPS Race Timer ships an update every 7 months, STAR Race Timer | 0 every 2 months. The most recent releases landed on September 25, 2026 and September 14, 2026 respectively.

Scorecard6 real differences · 4 level
GPS Race Timer versus STAR Race Timer | 0: the parameters behind the verdict, then further details
ParameterGPS Race TimerSTAR Race Timer | 0
PriceFreeFree
Rating4.5 (2.7K ratings) — better1.0 (1 ratings)
Positive reviews34.7% of reviews — better0.0% of reviews
Number of ratings2.7K — better1
Update frequencyEvery 7 monthsEvery 2 months — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.2 — better16.4
Further details — not scored
Size50 MB73 MB
Age rating4+4+
DeveloperThomas HagenauMaximilian Krause

Customer experience

GPS Race Timer

All ratings2,612 ratings
Positive87.1%
Neutral4.7%
Negative8.2%
Written reviews124 reviews
Positive34.7%
Neutral4.0%
Negative61.3%

STAR Race Timer | 0

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

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

STAR Race Timer | 0

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

GPS Race Timer

One-time1
  • PRO$4.99
1 purchases

STAR Race Timer | 0

One-time1
  • STAR Pro$44.99

Questions

Is GPS Race Timer free?
GPS Race Timer is free to download, with in-app purchases available.
Is STAR Race Timer | 0 free?
STAR Race Timer | 0 is free to download, with in-app purchases available.
Which has better reviews, GPS Race Timer or STAR Race Timer | 0?
GPS Race Timer is rated higher. GPS Race Timer averages 4.5 out of 5 from 2.7K ratings, while STAR Race Timer | 0 averages 1.0 from 1 ratings.
Do GPS Race Timer or STAR Race Timer | 0 have ads?
Both GPS Race Timer and STAR Race Timer | 0 show ads.
Which is updated more often, GPS Race Timer or STAR Race Timer | 0?
GPS Race Timer ships an update every 7 months, and STAR Race Timer | 0 every 2 months. Most recently, GPS Race Timer was updated on September 25, 2026 and STAR Race Timer | 0 on September 14, 2026.

Other comparisons