Comparison

GPS Race Timer vs MHD N55 E

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

MHD N55 E

This utility app is being retired and users are encouraged to switch to a unified flasher app. It retains some functionality for reading and clearing engine error codes, analyzing past data logs, and accessing vehicle licenses and user guides.

Highlights
  • Read and clear engine DTC error codes
  • Graph and analyze prior datalogs
  • View existing vehicle licenses
  • Access user guide
  • Transition to unified flasher app
Features
Read full description

This app is being retired. Please switch to our unified "MHD Flasher" app which now supports all E/F/G series vehicles / engines as well as Supra. This app will remain as a shell to help you switch over. Additionally, some functionality will remain to read and clear engine DTC error codes, graph and analyze your prior datalogs, view your existing vehicle licenses, and access the user guide!

Screenshots

GPS Race Timer4 screens
MHD N55 E4 screens

Verdict

The call

GPS Race Timer and MHD N55 E both sit at 4.5 stars, but that hides the real split: 79% of MHD N55 E's written reviews are positive against 35% of GPS Race Timer's. MHD N55 E also leads on in-app purchases (none vs 1) and ads (none vs shown). GPS Race Timer's advantage is ratings volume (2.7K vs 53). On price, rating 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. MHD N55 E asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for GPS Race Timer against 4.6 for MHD N55 E. That said, the two scores are not equally well evidenced: GPS Race Timer has 2.7K ratings behind it against 53, so its average is the more settled of the two. Written reviews are what separate them: 35% of GPS Race Timer's written reviews are positive against 79% of MHD N55 E's.

UpkeepUpdate frequency

GPS Race Timer ships an update every 7 months, MHD N55 E every 3 weeks. The most recent releases landed on September 20, 2026 and June 11, 2026 respectively.

Scorecard7 real differences · 3 level
GPS Race Timer versus MHD N55 E: the parameters behind the verdict, then further details
ParameterGPS Race TimerMHD N55 E
PriceFreeFree
Rating4.5 (2.7K ratings)4.6 (53 ratings) — better
Positive reviews34.7% of reviews79.2% of reviews — better
Number of ratings2.7K — better53
Update frequencyEvery 7 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.210.2 — better
Further details — not scored
Size50 MB123 MB
Age rating4+4+
DeveloperThomas HagenauMHD Tuning UG (haftungsbeschraenkt)

Customer experience

GPS Race Timer

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

MHD N55 E

All ratings53 ratings
Positive90.6%
Neutral1.9%
Negative7.5%
Written reviews24 reviews
Positive79.2%
Neutral4.2%
Negative16.7%

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

MHD N55 E

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

GPS Race Timer

One-time1
  • PRO$4.99
None

MHD N55 E

No in-app purchases

Questions

Is GPS Race Timer free?
GPS Race Timer is free to download, with in-app purchases available.
Is MHD N55 E free?
MHD N55 E is free to download, with no in-app purchases.
Which has better reviews, GPS Race Timer or MHD N55 E?
MHD N55 E is rated higher. GPS Race Timer averages 4.5 out of 5 from 2.7K ratings, while MHD N55 E averages 4.6 from 53 ratings.
Do GPS Race Timer or MHD N55 E have ads?
GPS Race Timer shows ads; MHD N55 E does not.
Which is updated more often, GPS Race Timer or MHD N55 E?
GPS Race Timer ships an update every 7 months, and MHD N55 E every 3 weeks. Most recently, GPS Race Timer was updated on September 20, 2026 and MHD N55 E on June 11, 2026.

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