MobiSquirt vs GPS Race Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MobiSquirt
Connect your iOS device to a MegaSquirt ECU to view and log real-time engine data. Analyze performance with external tools. Supports various MegaSquirt firmware versions.
- Connect to MegaSquirt ECU
- View real-time engine data
- Log data for analysis
- Supports MegaSquirt firmware
- WiFi or Bluetooth connection
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MobiSquirt allows you to connect your iOS device to a MegaSquirt ECU, view realtime data from your car's engine control system and log that data for later analysis using available tools such as MegaLogViewer. MobiSquirt will eventually support all versions of the MegaSquirt firmware but initial versions of the app will concentrate on compatibility with MegaSquirt 1, MegaSquirt 1 - Extra, MegaSquirt 2 and MegaSquirt 2-Extra. It is also anticipated that support for MegaJolt will be added. Version 1.2 of the App has been tested against most versions of the MS1-Extra and MS2-Extra firmware. Other firmware versions have partial or no support in this version. Use of this app will require provision of a WiFi or Bluetooth connection to your MegaSquirt ECU. Details of suitable options for this are available on the app web site - https://mobisquirt.org/ and in the user manual available at https://mobisquirt.org/user-manual/
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
Screenshots
Verdict
The clearest difference is rating: GPS Race Timer at 4.5 against MobiSquirt's 3.0. GPS Race Timer also leads on update cadence (every 7 months vs every 41 months) and ratings volume (2.7K vs 4). MobiSquirt'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
Both are free to download. GPS Race Timer sells 1 one-off in-app purchase. MobiSquirt asks for nothing beyond the download.
GPS Race Timer holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: GPS Race Timer has 2.7K ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 67% of MobiSquirt'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.
MobiSquirt ships an update every 41 months, GPS Race Timer every 7 months. The most recent releases landed on July 20, 2026 and September 20, 2026 respectively.
| Parameter | MobiSquirt | GPS Race Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) | 4.5 (2.7K ratings) — better |
| Positive reviews | 66.7% of reviews — better | 34.7% of reviews |
| Number of ratings | 4 | 2.7K — better |
| Update frequency | Every 41 months | Every 7 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.2 |
| Further details — not scored | ||
| Size | 26 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Dave White | Thomas Hagenau |
Customer experience
MobiSquirt
GPS Race Timer
Bugs and requests
MobiSquirt
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
MobiSquirt
No in-app purchases
GPS Race Timer
- PRO$4.99
Questions
Is MobiSquirt free?
Is GPS Race Timer free?
Which has better reviews, MobiSquirt or GPS Race Timer?
Do MobiSquirt or GPS Race Timer have ads?
Which is updated more often, MobiSquirt or GPS Race Timer?
Other comparisons
