# GPS Race Timer vs MHD Flasher

The clearest difference is in-app purchases: MHD Flasher at none against GPS Race Timer's 1. MHD Flasher also leads on ads (none vs shown) and review sentiment (65% vs 35%). GPS Race Timer's advantage is ratings volume (2.7K vs 206). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. GPS Race Timer sells 1 one-off in-app purchase. MHD 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 MHD Flasher. That said, the two scores are not equally well evidenced: GPS Race Timer has 2.7K ratings behind it against 206, 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 65% of MHD Flasher's.

GPS Race Timer ships an update every 7 months, MHD Flasher fortnightly. Both last shipped on September 20, 2026.

## The numbers

| Metric | GPS Race Timer | MHD Flasher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2.7K ratings)](https://appshunter.io/ios/app/gps-race-timer/id1340496243/reviews) | **[4.5 (206 ratings)](https://appshunter.io/ios/app/mhd-flasher/id1468182144/reviews)** |
| Number of ratings | **2.7K** | 206 |
| Positive reviews | 34.7% of reviews | **65.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 50 MB | 239 MB |
| Requires iOS | **12.2** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Hagenau](https://appshunter.io/developer/1340496242) | [MHD Tuning UG (haftungsbeschraenkt)](https://appshunter.io/developer/1445162439) |

## 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


### MHD Flasher

[App page](https://appshunter.io/ios/app/mhd-flasher/id1468182144)

This app allows for complete DME remapping of BMW vehicles, offering maximum performance and safety. It provides full OBD flashing, pre-configured performance maps, and advanced engine monitoring capabilities. Users can also customize various flash options for a personalized driving experience.

**Highlights:** Complete DME remapping, Full OBD flashing, Pre-configured performance maps (Stage 1, 2, E85), Advanced engine monitoring, Customizable flash options, Revert to factory OEM flash

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast flashing speeds (16-30 seconds)
- 👍 User-friendly interface and intuitive design
- 💪 Significant power gains and performance improvements
- 🎯 Excellent OTS (off-the-shelf) maps with multiple fuel options
- 📊 Comprehensive data logging and monitoring capabilities

**What reviewers complain about**

- 🐛 Frequent app crashes and stability issues
- ❌ Recent update broke core functionality for many users
- 🔌 Connection problems with WiFi adapters
- 📵 Unable to open app after recent updates
- 😞 Poor customer support responsiveness (recent)

**Reported bugs**

- App crashes on iOS 26.2 and newer versions
- Unable to flash after recent updates
- Unable to erase memory errors
- App fails to open after installation
- Connection constantly disconnects on N55 F30 platform

**Requested features**

- Add 94 octane fuel option
- Support for diesel engines
- Support for N63 engine tuning
- Max cooling fan option in new app
- Ability to change login email/username


## Frequently asked questions

### Is GPS Race Timer free?

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

### Is MHD Flasher free?

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

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

MHD Flasher is rated higher. GPS Race Timer averages 4.5 out of 5 from 2.7K ratings, while MHD Flasher averages 4.5 from 206 ratings.

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

GPS Race Timer shows ads; MHD Flasher does not.

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

GPS Race Timer ships an update every 7 months, and MHD Flasher fortnightly. Most recently, GPS Race Timer was updated on September 20, 2026 and MHD Flasher on September 20, 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.*