# MHD Flasher vs D

MHD Flasher and D are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

MHD Flasher ships an update weekly, D every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MHD Flasher | D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (216 ratings)](https://appshunter.io/ios/app/mhd-flasher/id1468182144/reviews)** | — |
| Number of ratings | **216** | — |
| Positive reviews | 65.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free | — |
| Size | 241 MB | 40 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MHD Tuning UG (haftungsbeschraenkt)](https://appshunter.io/developer/1445162439) | [LUN LIU](https://appshunter.io/developer/1890125123) |

## 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


### D

[App page](https://appshunter.io/ios/app/d-sync-ecu/id6761677479)

**Features:** iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is MHD Flasher free?

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

### Is D free?

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

### Do MHD Flasher or D have ads?

Neither MHD Flasher nor D shows ads.

### Which is updated more often, MHD Flasher or D?

MHD Flasher ships an update weekly, and D every 5 days. Most recently, MHD Flasher was updated on November 3, 2026 and D 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.*