Comparison

Fill Up Tracker vs GPS Race Timer

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

Head to head
About

Fill Up Tracker

Easily track your vehicle's MPG by logging fuel fill-ups and trip distances. Plan future journeys with a built-in calculator for estimated fuel costs and quantities. Supports both imperial and metric units.

Highlights
  • Log fuel fill-ups
  • Track trip odometer
  • Calculate MPG
  • Estimate trip fuel costs
  • Imperial/metric unit switching
  • Optional location tracking
Features
Read full description

A Simple, Free, Ad-Free app to help you keep track of your MPG. Simply enter in your trip, or odometer reading, and how much you filled up at the pump and let Fill Up do the rest! With the Watch extension you can quickly enter fill ups without having to pull out your phone at the pump! Optional to track the locations of your fill ups. Built in calculator helps you plan better. Enter in the price per gallon and how far you need to go and Fill Up Tracker will estimate how many gallons you will need and the cost of the trip. You can switch in between imperial and metric units in the application settings.

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

Screenshots

Fill Up Tracker4 screens
GPS Race Timer4 screens

Verdict

The call

The clearest difference is rating: GPS Race Timer at 4.5 against Fill Up Tracker's 2.9. GPS Race Timer also leads on ratings volume (2.7K vs 11). Fill Up Tracker's advantage is in-app purchases (none vs 1) and ads (none vs shown). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. GPS Race Timer sells 1 one-off in-app purchase. Fill Up Tracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GPS Race Timer holds the better App Store score, 4.5 against 2.9. That said, the two scores are not equally well evidenced: GPS Race Timer has 2.7K ratings behind it against 11, so its average is the more settled of the two. Written reviews complicate that: 48% of Fill Up Tracker's written reviews are positive against 35% of GPS Race Timer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Fill Up Tracker ships an update every 3 months, GPS Race Timer every 7 months. The most recent releases landed on June 1, 2026 and September 20, 2026 respectively.

Scorecard8 real differences · 2 level
Fill Up Tracker versus GPS Race Timer: the parameters behind the verdict, then further details
ParameterFill Up TrackerGPS Race Timer
PriceFreeFree
Rating2.9 (11 ratings)4.5 (2.7K ratings) — better
Positive reviews47.8% of reviews — better34.7% of reviews
Number of ratings112.7K — better
Update frequencyEvery 3 months — betterEvery 7 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better12.2
Further details — not scored
Size18 MB50 MB
Age rating4+4+
DeveloperSpencer BakerThomas Hagenau

Customer experience

Fill Up Tracker

All ratings11 ratings
Positive36.4%
Neutral27.3%
Negative36.4%
Written reviews23 reviews
Positive47.8%
Neutral26.1%
Negative26.1%

GPS Race Timer

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

Bugs and requests

Fill Up Tracker

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Fill Up Tracker

No in-app purchases

1 purchases

GPS Race Timer

One-time1
  • PRO$4.99

Questions

Is Fill Up Tracker free?
Fill Up Tracker is free to download, with no in-app purchases.
Is GPS Race Timer free?
GPS Race Timer is free to download, with in-app purchases available.
Which has better reviews, Fill Up Tracker or GPS Race Timer?
GPS Race Timer is rated higher. Fill Up Tracker averages 2.9 out of 5 from 11 ratings, while GPS Race Timer averages 4.5 from 2.7K ratings.
Do Fill Up Tracker or GPS Race Timer have ads?
GPS Race Timer shows ads; Fill Up Tracker does not.
Which is updated more often, Fill Up Tracker or GPS Race Timer?
Fill Up Tracker ships an update every 3 months, and GPS Race Timer every 7 months. Most recently, Fill Up Tracker was updated on June 1, 2026 and GPS Race Timer on September 20, 2026.

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