# MHD Flasher vs ProEFI Logger

The clearest difference is review sentiment: MHD Flasher at 65% against ProEFI Logger's 0%. MHD Flasher also leads on rating (4.5 vs 2.0) and ratings volume (206 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MHD Flasher holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: MHD Flasher has 206 ratings behind it against 1, 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 0% of ProEFI Logger's.

MHD Flasher ships an update fortnightly, ProEFI Logger monthly. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | MHD Flasher | ProEFI Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (206 ratings)](https://appshunter.io/ios/app/mhd-flasher/id1468182144/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/proefi-logger/id1643540729/reviews) |
| Number of ratings | **206** | 1 |
| Positive reviews | **65.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free | Free |
| Size | 239 MB | 62 MB |
| Requires iOS | 13.0 | **12.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MHD Tuning UG (haftungsbeschraenkt)](https://appshunter.io/developer/1445162439) | [Teslogic, Inc.](https://appshunter.io/developer/1605403177) |

## What reviewers say

### 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


### ProEFI Logger

[App page](https://appshunter.io/ios/app/proefi-logger/id1643540729)

This application serves as a CAN logger specifically designed for ProEFI ECUs. It allows users to record and analyze data from their ProEFI engine control units.

**Highlights:** CAN logging, ProEFI ECU compatibility, Data recording, Data analysis

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MHD Flasher free?

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

### Is ProEFI Logger free?

ProEFI Logger is free to download, with no in-app purchases.

### Which has better reviews, MHD Flasher or ProEFI Logger?

MHD Flasher is rated higher. MHD Flasher averages 4.5 out of 5 from 206 ratings, while ProEFI Logger averages 2.0 from 1 ratings.

### Do MHD Flasher or ProEFI Logger have ads?

Neither MHD Flasher nor ProEFI Logger shows ads.

### Which is updated more often, MHD Flasher or ProEFI Logger?

MHD Flasher ships an update fortnightly, and ProEFI Logger monthly. Most recently, MHD Flasher was updated on October 17, 2026 and ProEFI Logger on October 5, 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.*