MG Flasher vs DragCalc
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
DragCalc
This app predicts drag racing performance metrics like quarter-mile times and trap speeds using a physics-based simulation. It allows users to input car specifications, compare different builds, and analyze real-world runs.
- AI-powered car input
- Quarter & Eighth Mile ET/trap speed predictions
- Side-by-side car build comparison
- Slope correction for track grade
- Analysis of imported run data
- Cloud sync for presets
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DragCalc is the ultimate drag racing performance calculator. Predict your quarter-mile times, trap speeds, and acceleration metrics with physics-based simulation. FEATURES: • AI-Powered Input — Describe any car and get instant specs • Quarter & Eighth Mile — Accurate ET and trap speed predictions • Compare Builds — Race up to 4 cars side-by-side with animated simulation • Slope Correction — Correct your times for track grade • Analyze Runs — Import Dragy CSV files or timeslips • Cloud Sync — Sign in to save presets across devices PHYSICS ENGINE: • Real tire compounds (slicks, radials, street) • Surface grip modeling (prep, asphalt, concrete) • Drivetrain losses and transmission efficiency
Screenshots
Verdict
The clearest difference is review sentiment: MG Flasher at 71% against DragCalc's 0%. MG Flasher also leads on rating (4.5 vs 3.0) and ads (none vs shown). On price 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MG Flasher holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: MG Flasher has 89 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of MG Flasher's written reviews are positive against 0% of DragCalc's.
MG Flasher ships an update every 9 days, DragCalc every 5 months. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.
| Parameter | MG Flasher | DragCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (89 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 71.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 89 — better | 1 |
| Update frequency | Every 9 days — better | Every 5 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.4 — better | 18.1 |
| Further details — not scored | ||
| Size | 748 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | JR Auto Performance Inc. | Sheharyar Irfan |
Customer experience
MG Flasher
DragCalc
In-app purchases
MG Flasher
No in-app purchases
DragCalc
No in-app purchases
