MG Flasher vs Steer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MG Flasher
This app allows for advanced ECU tuning and feature unlocking for specific BMW and Supra engines via OBD and Wi-Fi. It offers on-the-fly map switching, custom options, flex fuel integration, and diagnostic capabilities for enhanced vehicle performance. Designed for off-road use only.
- Custom performance modifications
- Switchable maps on-the-fly
- Dynamic exhaust burble control
- Flex fuel integration
- Torque limiter adjustment
- Speed limit removal
- Diagnostic DTC reading/clearing
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MG Flasher is a mobile tuning App designed for BMW/Supra vehicles equipped with B48, B58, S58, N63, S63, and N74 engines. Flashing is done by OBD using ENET Wi-Fi. Flashing time on ENET is only 15 - 20 seconds! Disclaimer: For off-road use only. *Initial flash/ECU unlock with ENET Wifi will take approximately 4 - 6 minutes. Flashing your BMW with MG Flasher unlocks many features: • Custom Options - pick and choose performance mods, exhaust, cooling, torque options, as well as custom code options + more. • Switchable Maps On-The-Fly - WORLD'S FIRST SOLUTION FOR BMW B58/B48 - through a simple combination of cruise control buttons you can quickly select between mapping, without the need to reflash the vehicle! Currently available for gen 1 and 2 B48,B58 and S58. • Dynamic Exhaust Burble On-The-Fly - via a simple combination of cruise control buttons you can change the intensity of the burbles whenever you like! Currently available for gen 1 and 2 B48,B58 and S58. • Flex Fuel - Automatically adjusts engine calibration to any ethanol blend, with smart blending logic for smooth power delivery and full integration with sensor or manual override control. Live ethanol display, cruise-control adjustability, and instant cluster feedback. • Max Cooling On-The-Fly - With a simple cruise control button combination sequence, you can enable the option without reflashing the car! Currently available for gen 1 and 2 B48,B58 and S58. • Torque Limit Adjustability - TCU 8HP Limiter Lifted for all platforms! Software calibration without the need for any transmission tuning or skewing the torque/load calculation model maps. This allows for accurate calculations, smooth shifting and no software trickery. • Speed Limit Removal, Startup Roar, Torque by Gear Limiter available on select software • Sport Gauges (HP and TQ) adjustable by user! • OTS maps prepared by MG Flasher tuners • Custom maps flashing – flash custom maps prepared by us or other tuners/users • Logger - log real time data and plot it into graphs for troubleshooting and optimizing • Cloud Log Viewer - Professional log viewing on logs.mgflasher.com • Diagnostic - Read and clear BMW specific DTC's • Reset various adaptations, restore coding • CVN number (Checksum Verification Number) along with flashing counter stays untouched. This means our software will be virtually invisible to dealer level diagnostic tools Supported vehicles: BMW M140i/120i/125i/M135i F20/F21/F40 BMW M240i/220i/225i/230i/228i/M235i - F22/F23/F44 BMW M340i/318i/320i/330i/330e - F30/F31/F34/G20/G21/G28 BMW M3 - G80 BMW M440i/420i/430i - F32/F33/F36/G22 BMW M4 - G82 BMW 540i/520i/530i/530e - G30/G31/G38 BMW M550i G30 BMW M5 LCI - F90 BMW 640i/630i - G32 BMW 740i/740Li/730i/730Li/740e/740Le - G11/G12 BMW 840i, M850i - G14/G15/G16 BMW M8 - F91, F92, F93 BMW X1 20i/25i/28i -F48 BMW X2 20i/25i/28i/M35i - F39 BMW X3 M40i/20i/30i - G01 BMW X4 M40i/20i/30i - G02 BMW X3M/X4M - F97/F98 BMW X5 40i,50i - G05 BMW X6 40i - G06 BMW X5M/X6M - F95/F96
Steer
Transform your smartphone into a powerful OBD2 diagnostic tool. Read and clear fault codes, monitor real-time performance metrics, and test your vehicle's acceleration and emissions. Compatible with a wide range of car brands and OBD2 scanners.
- Universal OBD2 scanner compatibility
- Read and erase fault codes
- Real-time performance metrics
- Acceleration and performance testing
- Emission compliance checks
- Supports various car brands
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Your car has been trying to tell you something. Steer translates it. Plug the Steer sensor into the port under your steering wheel and the app reads what your car already knows — then explains it the way an honest mechanic would: in plain language, with no jargon and nothing to upsell you. WHAT YOU GET: ■ AI MECHANIC Ask anything about your car and get a straight answer. Send a photo of a warning light, a leak on the driveway or a part you don't recognize, or just describe the noise it makes. It knows your exact car and your latest scan. ■ ONE NUMBER, 0 TO 100 Your Steer Score answers "how is my car right now?". No trouble codes to look up, no tables to read. Watch it move over time. ■ PROBLEMS IN PLAIN LANGUAGE Every issue comes with what it means, whether it is safe to keep driving, and what the repair usually costs. Not "P0420 — Catalyst System Efficiency Below Threshold". ■ DEEP SCAN 21 systems and 126 live parameters, across every module your car will talk to. Start it, lock your phone, and get a notification when it is done. ■ DASHBOARD LIGHT LIBRARY Every warning light on your dashboard — check engine, ABS, airbag, TPMS, oil, battery — what it actually means, and how urgent it really is. ■ MAINTENANCE THAT KNOWS YOUR CAR Service intervals based on your VIN and your real mileage, not a generic checklist. Oil changes, filters, brakes, belts. ■ SAFETY RECALLS We check your VIN against the manufacturer recall database and tell you if your car is affected. ■ EVERY OBD2 CAR SINCE 1996 80 makes and thousands of models, 1996 to 2026. TRY IT BEFORE YOU BUY Open the app and tap "Try a real scan". You get the whole experience on a demo car — scan, results, AI Mechanic — with no sensor, no account and no card. WHAT YOU NEED Steer works with the Steer OBD2 sensor, available at steer.so. It is not compatible with third-party adapters. MEMBERSHIP Free forever: live codes, battery alerts and basic diagnosis. Steer Plus unlocks the unlimited AI Mechanic, full explanations for every issue, predictive maintenance and every car in the household — $99/year with a 14-day free trial, or $14.99/month. Terms of Use: https://steer.so/terms Privacy Policy: https://steer.so/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: MG Flasher at none against Steer's 2. MG Flasher also leads on review sentiment (71% vs 40%) and update cadence (every 9 days vs every 2 months). On price, ads 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. Steer sells 2 in-app purchases, starting at $9.99 per month. MG Flasher asks for nothing beyond the download.
MG Flasher ships an update every 9 days, Steer every 2 months. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.
| Parameter | MG Flasher | Steer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (89 ratings) — better | — |
| Positive reviews | 71.4% of reviews — better | 40.0% of reviews |
| Number of ratings | 89 — better | — |
| Update frequency | Every 9 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.4 — better | 26.1 |
| Further details — not scored | ||
| Size | 196 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | JR Auto Performance Inc. | Smarters Engineered |
Customer experience
MG Flasher
Steer
In-app purchases
MG Flasher
No in-app purchases
Steer
- OBD2 Pro$9.991 Month
- OBD2 Pro$19.991 Year
Questions
Is MG Flasher free?
Is Steer free?
Do MG Flasher or Steer have ads?
Which is updated more often, MG Flasher or Steer?
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