MHD Flasher vs GarageBuddy AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MHD Flasher
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.
- 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
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MHD Flasher is a complete flash tuning app for your BMW. Unlike a piggyback module, it is capable of complete DME remapping while retaining all OEM safety mechanisms. This allows for maximum performance,maximum safety, and unrivaled drivability. --------------------------------------------- Full OBD Flashing: You can install MHD right at home and start tuning immediately! Simply download the MHD Flasher app that connects via a Wi-Fi adapter to your iOS device and your vehicle’s OBD-II port, start the app, and within 4 minutes the initial installation is complete. Further map changes are much faster - only 20 seconds! You can revert your vehicle to the factory OEM flash at any point, and no initial backup is necessary. --------------------------------------------- Stage 1, Stage 2 und E85 OTS (Off The Shelf) Maps by PureBoost: N55 EWG (Vehicles built after 07/2013 with electronic wastegate): - Stage 1 (up to 360HP/540NM) (not available for M2 and X4 M40i) - Stage 2 (up to 390HP/580NM) - Stage 2+ (up to 430HP/630NM) - Ethanol Mix Maps: Stage 1, 2 and 2+ E20 Maps for ethanol blends of 20% N55 PWG (pneumatic wastegate): - Stage 1 (up to 340HP/540NM) - Stage 2 (up to 370HP/580NM) - Stage 2+ (up to 400HP/630NM) - Ethanol Mix Maps: Stage 1, 2 and 2+ E20 Maps for ethanol blends of 20% S55 (BMW M3 / M4 F8x): - Stage 1 (up to 530HP/700NM) - Stage 2 (up to 560HP/780NM) - Ethanol Mix Maps: Stage 1, 2 and 2+ E30 Maps for ethanol blends of 30% B58: - Stage 1 (up to 420HP/580NM) - Stage 2 (up to 470HP/630NM) - Ethanol Mix Maps: Stage 1, 2 Maps for ethanol blends of 30% --------------------------------------------- Monitor your engine behavior to make sure it is running perfectly using a configurable and very responsive gauge layout. 50+ engine parameters are available at a glance! These are some of the available monitors: - Boost, Boost Target - Lambda (AFR) - Intake Air Temp (IAT) - Ignition Timing per Cylinder - Coolant Temperature - Oil Temperature, Oil Pressure - Transmission Temperature - High Pressure Fuel Pump (HPFP) - Throttle Position - Wastegate Duty-Cycle (WGDC) - RPM - Speed - EGT And many more… MHD exclusive advanced monitor: - Timing Corrections per Cylinder - Boost target EX which can read higher than 22.x psi (the BMW boost target channel can't) - Base Compressor Axis: Boost Setpoint, MAF req WGDC. - Active Torque Limiters And many more… --------------------------------------------- These flash options can be applied to any map directly through the app: - Exhaust Burble (duration & aggressiveness, min speed, min rpm) - N20 Map Sensor (on N55) - Remove top speed limiter (Vmax) - Cold start noise reduction - Exhaust flap open in sport mode - Limit power per gear - XHP TCU flash support (optimizied OTS maps) - Sport cooling mode for increased water / air intercooler cooling (B58 only) --------------------------------------------- Supported E-Series Vehicles: 135i, 135is, 335i and 535i 2006-2013 335is 2011-2013 Z4 35i/is 2009-2015 1M 2011-2012 X1 35i 2010-2013 X5 35i 2010-2013 X6 35i 2008-2014 Supported F/G Series Vehicles: M135i F2x N55 2012 - 2016 M235i F2x N55 2013 - 2016 M2 F87 N55 2015 - 2018 335i N55 F3x 2011 - 2015 435i N55 F3x 2013 - 2016 535i / GT N55 F1x 2010 - 2017 640i N55 F0x 2011 - 2017 740i N55 F0x 2012 - 2015 X3 35i N55 F25 2010 - 2017 X4 35i / M40i N55 F26 2014 - 2018 X5 40i N55 F15 2013 - 2018 X6 40i N55 F16 2014 - 2018 M3 S55 F80 2014 - 2019 M4 S55 F82 2014 - 2019 M4 S55 F83 2014 - 2019 M140i F2x 2012 - 2019 M240i F2x 2016 - 2019 340i F3x 2015 - 2019 440i F3x 2016 - 2019 540i G3x 2017 - 640i GT G32 2017 - 740i G1x F0x 2015 - X3 M40i G01 2017 - X4 M40i G02 2018 - X5 40i G05 2018 - Z4 M40i G29 2019 - 114i F2x 2012 - 2015 116i F2x 2011 - 2015 118i F2x 2011 - 2016 120i F2x 2015 - 2017 316i F3x 2012 - 2018 X-Drive is supported on all cars. All performance power kit cars are supported. Check out our homepage / user manual for more information and recommended modifications for each stage.
GarageBuddy AI
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GarageBuddy is an AI-assisted helper for the moment your car does something you cannot explain. Describe the symptom in your own words and get back a ranked list of likely causes, the cheapest check to run first, and a straight answer on whether it is safe to keep driving. WHAT IT DOES Describe a symptom "Brakes feel spongy." "Check engine light came on at highway speed." "Grinding when I turn left." GarageBuddy ranks the likely causes, explains why each one fits, and tells you which one to check first and whether it is a do-it-yourself job. Drive it or park it Every diagnosis comes with a verdict: OK to drive, short trips only, or do not drive it. Brake, steering, and fuel-smell complaints are never waved through on a thin description. Honest confidence You see how sure the assistant is and why. If it needs more information it asks a question you can answer in place, instead of guessing. Snap a photo Photograph a leak, a worn part, or a warning light and the same assistant tells you what it can and cannot see. Identify the vehicle Scan a license plate or the VIN sticker with your camera, or type the VIN. Year, make, model, and engine are filled in from public NHTSA data. Read trouble codes (optional hardware) Pair an ELM327-style Bluetooth OBD-II adapter to read stored check-engine codes on most cars built since 1996. Codes the adapter actually reads are used in the diagnosis; nothing is invented. Recalls and complaint patterns Open safety recalls and owner complaint trends for your vehicle, from the NHTSA database. Keep your garage Save every vehicle in the household, switch between them, and look back at past diagnoses. All of it stays on your device. Find the parts Each diagnosis suggests what to search for, with links to Amazon and eBay listings. WHO IT'S FOR First-time owners who want a straight answer before they call a shop, and DIY mechanics who want a second opinion before ordering parts. PRIVACY No account. Your vehicle list and history live on your phone. A diagnosis sends your description, vehicle, any codes read, and the photo you chose to our AI service to produce the answer, and nothing else. We do not track your location, run advertising trackers, or sell your data. GarageBuddy gives general information to help you understand your vehicle. It is not a substitute for inspection by a qualified mechanic. As an Amazon Associate, Odam Solutions earns from qualifying purchases. Built by Odam Solutions LLC in Washington state. Questions or bugs: jeremy@odamsolutions.com. We read every message.
Screenshots
Verdict
The clearest difference is update cadence: GarageBuddy AI at every 2 days against MHD Flasher's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MHD Flasher ships an update fortnightly, GarageBuddy AI every 2 days. The most recent releases landed on October 22, 2026 and October 14, 2026 respectively.
| Parameter | MHD Flasher | GarageBuddy AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (211 ratings) — better | — |
| Positive reviews | 65.1% of reviews | — |
| Number of ratings | 211 — better | — |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 239 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | MHD Tuning UG (haftungsbeschraenkt) | Jeremy Odam |
Bugs and requests
MHD Flasher
Reported bugs
16 issues- 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
Show 11 moreShow fewer
- Unable to upload logs to SpoolStreet
- Cannot edit burples settings after update
- Failed flashes (7+ consecutive failures reported)
- Invalid credentials error on new device login
- Monitor license not functioning
- Anti-lag feature cannot be removed once flashed
- Lumpy cold start with startup roar enabled
- WiFi adapter disconnects during mapping
- Unable to prepare memory section errors
- User guide PDF crashes app
- Missing custom tunes after app migration
Requested features
11 requests- 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
Show 6 moreShow fewer
- License transfer capability for car sales
- Support for Gen 2 B58 with MHD+ features
- Ability to revert to previous OTS map versions
- Detailed release notes for OTS map updates
- Custom tune file transfer to new app
- Burbles setting in regular mode (not just sport mode)
GarageBuddy AI
Not enough reviews yet to summarise bugs or requests.
In-app purchases
MHD Flasher
No in-app purchases
GarageBuddy AI
No in-app purchases









