Comparison

RaceChip+ vs MHD Flasher

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RaceChip+

Control chip tuning and throttle tuning for your car with this app. Fine-tune settings to match your car's specifics and driving style, with easy access to Eco, Sport, and Race modes. Experience enhanced performance with RaceChip tuning chips.

Highlights
  • Chip tuning control
  • Throttle tuning control
  • Customizable driving modes (Eco, Sport, Race)
  • Real-time software updates
  • Product support
Features
Read full description

Control chip tuning and throttle tuning with one app and fine tune the respective settings to perfectly match your car's specifics and your personal driving style. Map these settings to three easy to the access driving modes Eco, Sport and Race. Download the free RaceChip app now and experience your car on a whole new level with our RaceChip tuning chips RS, GTS or GTS Black and throttle tuning RaceChip XLR. RaceChip products are available for numerous cars in our online shop (see www.racechip.com). The RaceChip app not only allows for a new driving experience but also sets the standard in product support. Updates for your car's tuning configuration and the tuning chip's software will be available instantaneously through the app. Get your RaceChip now and experience real power. RaceChip - Performance tuning made in Germany

About

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.

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
Read full description

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.

Screenshots

RaceChip+4 screens
MHD Flasher4 screens

Verdict

The call

The clearest difference is rating: MHD Flasher at 4.5 against RaceChip+'s 3.1. MHD Flasher also leads on review sentiment (65% vs 38%) and update cadence (fortnightly vs every 2 months). On price, ratings volume, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

MHD Flasher holds the better App Store score, 4.5 against 3.1. Both are backed by a comparable volume of ratings — 81 and 206 respectively. Written reviews point the same way: 38% of RaceChip+'s written reviews are positive against 65% of MHD Flasher's.

UpkeepUpdate frequency

RaceChip+ ships an update every 2 months, MHD Flasher fortnightly. The most recent releases landed on July 14, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 7 level
RaceChip+ versus MHD Flasher: the parameters behind the verdict, then further details
ParameterRaceChip+MHD Flasher
PriceFreeFree
Rating3.1 (81 ratings)4.5 (206 ratings) — better
Positive reviews38.5% of reviews65.1% of reviews — better
Number of ratings81206 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.2 — better13.0
Further details — not scored
Size96 MB239 MB
Age rating4+4+
DeveloperRaceChip Chiptuning GmbH & Co. KGMHD Tuning UG (haftungsbeschraenkt)

Customer experience

RaceChip+

All ratings80 ratings
Positive45.0%
Neutral15.0%
Negative40.0%
Written reviews182 reviews
Positive38.5%
Neutral8.8%
Negative52.7%

MHD Flasher

All ratings206 ratings
Positive85.4%
Neutral3.4%
Negative11.2%
Written reviews129 reviews
Positive65.1%
Neutral10.9%
Negative24.0%

Bugs and requests

RaceChip+

Not enough reviews yet to summarise bugs or 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 more
  • 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 more
  • 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)

In-app purchases

None

RaceChip+

No in-app purchases

None

MHD Flasher

No in-app purchases

Questions

Is RaceChip+ free?
RaceChip+ 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, RaceChip+ or MHD Flasher?
MHD Flasher is rated higher. RaceChip+ averages 3.1 out of 5 from 81 ratings, while MHD Flasher averages 4.5 from 206 ratings.
Do RaceChip+ or MHD Flasher have ads?
Neither RaceChip+ nor MHD Flasher shows ads.
Which is updated more often, RaceChip+ or MHD Flasher?
RaceChip+ ships an update every 2 months, and MHD Flasher fortnightly. Most recently, RaceChip+ was updated on July 14, 2026 and MHD Flasher on September 24, 2026.

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