# bootmod3 vs GAP Flasher

The clearest difference is monetization model: GAP Flasher at free against bootmod3's paid. GAP Flasher also leads on iOS requirement (9.0 vs 15.0). bootmod3's advantage is ratings volume (1.7K vs 5) and update cadence (every 4 days vs fortnightly). On price, ads, in-app purchases and device support there is nothing between them.

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

bootmod3 holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: bootmod3 has 1.7K ratings behind it against 5, so its average is the more settled of the two.

bootmod3 ships an update every 4 days, GAP Flasher fortnightly. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | bootmod3 | GAP Flasher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.7K ratings)](https://appshunter.io/ios/app/bootmod3/id1170348811/reviews)** | [4.6 (5 ratings)](https://appshunter.io/ios/app/gap-flasher/id1201784074/reviews) |
| Number of ratings | **1.7K** | 5 |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | Paid | **Free** |
| Size | 151 MB | 41 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PRO TUNING FREAKS INC.](https://appshunter.io/developer/1170348810) | [GAP Innovation](https://appshunter.io/developer/632832354) |

## What reviewers say

### bootmod3

[App page](https://appshunter.io/ios/app/bootmod3/id1170348811)

This platform enables users to unlock the full performance potential of their BMW, Mini, and Toyota Supra vehicles by flashing the factory ECU and TCU. It offers features like map switching, flex fuel tuning, and anti-lag, allowing for significant horsepower gains and custom performance adjustments.

**Highlights:** ECU and TCU flashing, Map switching via steering wheel, Flex Fuel tuning, Anti-Lag functionality, Live monitoring and datalogging, Customizable map editor

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use app
- 🚀 Fast flashing and tuning
- 💪 Excellent performance gains
- 🔧 Great customization and tuning options
- ⭐ Fantastic customer support

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🔍 Difficulty with certain features (e.g. burbles, code clearing)
- 🤔 Compatibility problems with newer iOS versions
- 🧰 Concerns about bricking ECU

**Reported bugs**

- App crashes or freezes after updates
- Inability to connect to car after iOS updates
- Trouble with flashing and tune loading

**Requested features**

- Add support for more BMW models
- Improve app UI/UX for better usability
- Expand customization options (e.g. cold start, map selection)
- Enhance data logging and diagnostics


### GAP Flasher

[App page](https://appshunter.io/ios/app/gap-flasher/id1201784074)

This utility app enables communication with specific hardware devices through a user-friendly Bluetooth interface. It simplifies device operation for users with compatible hardware.

**Highlights:** Bluetooth communication, Device operation, User-friendly interface, GAP Flasher hardware compatible

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is bootmod3 free?

bootmod3 is free to download, with no in-app purchases.

### Is GAP Flasher free?

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

### Which has better reviews, bootmod3 or GAP Flasher?

bootmod3 is rated higher. bootmod3 averages 4.8 out of 5 from 1.7K ratings, while GAP Flasher averages 4.6 from 5 ratings.

### Do bootmod3 or GAP Flasher have ads?

Neither bootmod3 nor GAP Flasher shows ads.

### Which is updated more often, bootmod3 or GAP Flasher?

bootmod3 ships an update every 4 days, and GAP Flasher fortnightly. Most recently, bootmod3 was updated on September 24, 2026 and GAP Flasher on September 9, 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.*