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bootmod3

bootmod3

ECU Flash: BMW, Mini & Supra

1.9K ratings
202 reviews
🔧 Utilities
🎬 Entertainment
Free

Details

Released
December 5, 2016
Updated
October 25, 2026

Features

Developer

PRO TUNING FREAKS INC.
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About

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.

✓ECU and TCU flashing
✓Map switching via steering wheel
✓Flex Fuel tuning
✓Anti-Lag functionality
✓Live monitoring and datalogging
✓Customizable map editor
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What users say about bootmod3

Reviews of bootmod3 are mostly positive: the Utilities app is rated 4.9/5 from 1.9K App Store ratings. What users like most: easy to use app, fast flashing and tuning. Top complaints: occasional connectivity issues, difficulty with certain features (e.g. burbles, code clearing). Summarized from real user reviews.

Positive things

  • 👍Easy to use app
  • 🚀Fast flashing and tuning
  • 💪Excellent performance gains
  • 🔧Great customization and tuning options
  • ⭐Fantastic customer support
  • 🔑Convenient wireless connectivity

Negative things

  • 🐛Occasional connectivity issues
  • 🔍Difficulty with certain features (e.g. burbles, code clearing)
  • 🤔Compatibility problems with newer iOS versions
  • 🧰Concerns about bricking ECU
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+1

What's New in bootmod3

3.3.5

October 25, 2026

- Live Adjust now shows map switching, Flex Fuel, and exhaust burble changes right away and stays in sync with the DME - Fixed the dashboard freezing after using Live Adjust - Map downloads now let you know when newer settings replace map settings saved only on this device - The Vehicle screen now highlights DME coding that did not apply after a flash - Added Vehicle Speed to the default Driver Request chart group - OBD Agent update 3.21.020

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User reviews

Most RecentHighest RatedLowest Rated

App connection Always gives problems

From
The moment I bought the BM3 adapter it never wants to connect its connecting better now after the recent update but now it connects but when I go to dashboard it looses connection and doesn’t stay connected honestly needs a better dev team
TTallcrib8939

So behind

this is coming from someone one who had MHD before and now have BM3. If you have the option to get MHD get it only reason i got BM3 is because they make tune for n63tu3 (which is horrible btw). BM3 has so much little quirks that are just horrible data logging issues, tune issues, app issues, etc. MHD is so much ahead of the game than these guys and a lot of people will agree, MHD is also miles more user-friendly.
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AArbnob556

Broken

Awesome app and tunes but the recent update that was supposed to fix connectivity drops did the opposite. If it connects, its only for a few seconds then drops for a few min before trying to connect again. The short time it was connected for 20 min, dashboard didnt work at all.
T1True April 1st

Response from developer

We’re sorry you’re experiencing connection drops and a non-responsive dashboard after the update. This isn’t expected behavior. Please contact us at support@protuningfreaks.com so our team can investigate and help resolve the issue.

Best app to use

This app makes it so easy to code your car and it works quite well
Aasieduboss

Love this app

Bootmod3 is so easy to use anyone can do and the new update is super fast and responsive I just wish you guys would rewrite the names of what the berbals was called when trying to put it louder or more quiet cause it’s kinda hard to understand what does what but all in all great app and tune
DDanasty13

Response from developer

Thank you so much for your 5* review! We’ll look into making the labels clearer if at all possible.

See 197 more reviews

User experience

🐞

Reported Bugs

3 issues

App crashes or freezes after updates

Bug

Inability to connect to car after iOS updates

Bug

Trouble with flashing and tune loading

Bug
✨

Requested Features

4 requests

Add support for more BMW models

Feature

Improve app UI/UX for better usability

Feature

Expand customization options (e.g. cold start, map selection)

Feature

Enhance data logging and diagnostics

Feature

FAQ

What does the bootmod3 app do?

The bootmod3 app is a flash tuning platform that allows users to reprogram their vehicle's factory engine control unit (ECU) and transmission control unit (TCU). This enables significant performance enhancements, custom tuning, and access to advanced features like map switching and flex fuel.

What are the key features of bootmod3?

Key features include the ability to flash custom tunes for substantial horsepower gains, map switching using steering wheel controls, flex fuel functionality for ethanol blending, anti-lag for improved acceleration, and live engine monitoring with datalogging capabilities. It also includes a map editor for advanced customization.

How much does bootmod3 cost?

The application itself is a one-time purchase. The pricing for the tuning platform is not explicitly detailed in the provided description, but it is a paid product. Users may need to refer to the official website for specific pricing tiers and options.

What vehicles are compatible with bootmod3?

The platform supports a wide range of BMW F and G series vehicles, including various M models, 35i and 40i variants, and specific X models. It also supports the new A90/A91 Toyota Supra. A detailed list of supported vehicles is available on the developer's website.

Can I use bootmod3 for everyday driving?

While the app allows for significant performance gains, it is important to note that this is a racing product intended for competition use on closed courses. Use of this software may void portions of your vehicle's factory warranty and some modifications may not be legal for on-highway use.