# E85 Calculator vs MHD Flasher

The clearest difference is rating: MHD Flasher at 4.5 against E85 Calculator's 1.0. MHD Flasher also leads on review sentiment (65% vs 25%) and update cadence (fortnightly vs every 29 months). 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 1.0. That said, the two scores are not equally well evidenced: MHD Flasher has 211 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 25% of E85 Calculator's written reviews are positive against 65% of MHD Flasher's.

E85 Calculator ships an update every 29 months, MHD Flasher fortnightly. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | E85 Calculator | MHD Flasher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/e85-calculator/id1029273167/reviews) | **[4.5 (211 ratings)](https://appshunter.io/ios/app/mhd-flasher/id1468182144/reviews)** |
| Number of ratings | 1 | **211** |
| Positive reviews | 25.0% of reviews | **65.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 3 MB | 239 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sheharyar Irfan](https://appshunter.io/developer/974971911) | [MHD Tuning UG (haftungsbeschraenkt)](https://appshunter.io/developer/1445162439) |

## What reviewers say

### E85 Calculator

[App page](https://appshunter.io/ios/app/e85-calculator/id1029273167)

This application helps performance enthusiasts and flex-fuel vehicle owners precisely calculate the amounts of E85 and gasoline needed for specific ethanol percentages or octane ratings. It offers both simple and advanced modes for fuel mixing calculations, supporting metric and imperial units.

**Highlights:** Calculate E85 and gasoline amounts, Target specific ethanol percentages, Calculate by desired octane rating, Metric and imperial unit support, Real-time calculations, Easy and advanced modes

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 E85 Calculator free?

E85 Calculator is free to download, with no in-app purchases.

### Is MHD Flasher free?

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

### Which has better reviews, E85 Calculator or MHD Flasher?

MHD Flasher is rated higher. E85 Calculator averages 1.0 out of 5 from 1 ratings, while MHD Flasher averages 4.5 from 211 ratings.

### Do E85 Calculator or MHD Flasher have ads?

Neither E85 Calculator nor MHD Flasher shows ads.

### Which is updated more often, E85 Calculator or MHD Flasher?

E85 Calculator ships an update every 29 months, and MHD Flasher fortnightly. Most recently, E85 Calculator was updated on October 24, 2026 and MHD Flasher on October 22, 2026.

---

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