# MHD Flasher vs Flat Rate Tech Log

The clearest difference is rating: MHD Flasher at 4.5 against Flat Rate Tech Log's 3.5. MHD Flasher also leads on in-app purchases (none vs 3) and ratings volume (216 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. Flat Rate Tech Log sells 3 in-app purchases, starting at $1.99 per 7 days. MHD Flasher asks for nothing beyond the download.

MHD Flasher holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: MHD Flasher has 216 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 65% of MHD Flasher's written reviews are positive against 50% of Flat Rate Tech Log's.

MHD Flasher ships an update weekly, Flat Rate Tech Log monthly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MHD Flasher | Flat Rate Tech Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (216 ratings)](https://appshunter.io/ios/app/mhd-flasher/id1468182144/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/flat-rate-tech-log-flag-hours/id6760527094/reviews) |
| Number of ratings | **216** | 2 |
| Positive reviews | **65.1% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | **Free** | Subscription |
| Size | 241 MB | 8 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MHD Tuning UG (haftungsbeschraenkt)](https://appshunter.io/developer/1445162439) | [Cesar Ibarra](https://appshunter.io/developer/1076131150) |

## What reviewers say

### MHD Flasher

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

This app allows BMW owners to remap their vehicle's engine control unit for enhanced performance and drivability. It offers full OBD flashing, various performance maps, and real-time engine monitoring. Users can also customize flash options like exhaust burble and Vmax removal.

**Highlights:** Full OBD engine remapping, Multiple performance map stages, Real-time engine parameter monitoring, Configurable gauge layouts, Customizable flash options, Fast installation and map changes, Revert to OEM flash capability

**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


### Flat Rate Tech Log

[App page](https://appshunter.io/ios/app/flat-rate-tech-log-flag-hours/id6760527094)

This app helps automotive technicians efficiently track repair orders, log work items, and scan VINs. It allows attaching photos, viewing activity summaries, and generating professional PDF reports for flagged hours. Designed for shop workflow, it organizes job details without paper notes.

**Highlights:** Track repair orders, Log work items, Scan VIN numbers, Attach photos to orders, Generate PDF reports, View activity summaries

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $1.99 | per 7 days |
| Monthly Access | $4.99 | per month |
| Yearly Access | $39.99 | per year |


## Frequently asked questions

### Is MHD Flasher free?

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

### Is Flat Rate Tech Log free?

Flat Rate Tech Log is free to download, with in-app purchases available.

### Which has better reviews, MHD Flasher or Flat Rate Tech Log?

MHD Flasher is rated higher. MHD Flasher averages 4.5 out of 5 from 216 ratings, while Flat Rate Tech Log averages 3.5 from 2 ratings.

### Do MHD Flasher or Flat Rate Tech Log have ads?

Neither MHD Flasher nor Flat Rate Tech Log shows ads.

### Which is updated more often, MHD Flasher or Flat Rate Tech Log?

MHD Flasher ships an update weekly, and Flat Rate Tech Log monthly. Most recently, MHD Flasher was updated on November 6, 2026 and Flat Rate Tech Log on October 31, 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.*