# GPS Race Timer vs MG Flasher

GPS Race Timer and MG Flasher both sit at 4.5 stars, but that hides the real split: 71% of MG Flasher's written reviews are positive against 34% of GPS Race Timer's. MG Flasher 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 89) and iOS requirement (12.2 vs 15.4). On price, rating and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.5 for GPS Race Timer against 4.5 for MG Flasher. That said, the two scores are not equally well evidenced: GPS Race Timer has 2.7K ratings behind it against 89, so its average is the more settled of the two. Written reviews are what separate them: 34% of GPS Race Timer's written reviews are positive against 71% of MG Flasher's.

GPS Race Timer ships an update every 7 months, MG Flasher every 9 days. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | GPS Race Timer | MG Flasher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2.7K ratings)](https://appshunter.io/ios/app/gps-race-timer/id1340496243/reviews) | **[4.5 (89 ratings)](https://appshunter.io/ios/app/mg-flasher/id1492813749/reviews)** |
| Number of ratings | **2.7K** | 89 |
| Positive reviews | 34.4% of reviews | **71.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 9 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 50 MB | 748 MB |
| Requires iOS | **12.2** | 15.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Hagenau](https://appshunter.io/developer/1340496242) | [JR Auto Performance Inc.](https://appshunter.io/developer/1492813748) |

## What reviewers say

### GPS Race Timer

[App page](https://appshunter.io/ios/app/gps-race-timer/id1340496243)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO | $4.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Accurate speed tracking
- 💡 Customizable settings
- 📊 Saves run data

**What reviewers complain about**

- 🐛 Inconsistent 0-60 and quarter mile times
- 🐛 Fails to start/record runs
- 🐛 Inaccurate distance tracking
- 🐛 Compatibility issues with newer devices

**Reported bugs**

- Timer doesn't reset properly
- App crashes on startup
- Significant GPS/speed detection delays
- Recorded times do not match actual performance

**Requested features**

- Add 60ft and 1/8 mile times
- Automatic start/stop of timer
- Manual start option for timer
- Improved accuracy and consistency


### MG Flasher

[App page](https://appshunter.io/ios/app/mg-flasher/id1492813749)

This app allows for advanced ECU tuning and feature unlocking for specific BMW and Supra engines via OBD and Wi-Fi. It offers on-the-fly map switching, custom options, flex fuel integration, and diagnostic capabilities for enhanced vehicle performance. Designed for off-road use only.

**Highlights:** Custom performance modifications, Switchable maps on-the-fly, Dynamic exhaust burble control, Flex fuel integration, Torque limiter adjustment, Speed limit removal, Diagnostic DTC reading/clearing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GPS Race Timer free?

GPS Race Timer is free to download, with in-app purchases available.

### Is MG Flasher free?

MG Flasher is free to download, with no in-app purchases.

### Which has better reviews, GPS Race Timer or MG Flasher?

MG Flasher is rated higher. GPS Race Timer averages 4.5 out of 5 from 2.7K ratings, while MG Flasher averages 4.5 from 89 ratings.

### Do GPS Race Timer or MG Flasher have ads?

GPS Race Timer shows ads; MG Flasher does not.

### Which is updated more often, GPS Race Timer or MG Flasher?

GPS Race Timer ships an update every 7 months, and MG Flasher every 9 days. Most recently, GPS Race Timer was updated on October 11, 2026 and MG Flasher on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*