Comparison

ECU Map Switcher by D vs BimmerDash

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

Head to head
About

ECU Map Switcher by D

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Map Switcher lets you read and switch AMG's MED17 ECU calibration maps through your OBD-II Bluetooth adapter. Designed for tuned vehicles with D-Sync multi-map ASW setups. Features: - One-tap map switching from iPhone or CarPlay - BLE connection to OBD adapters (OBDLink CX, etc.) - Multiple vehicle profiles with custom map addresses - Auto-reconnect to last used adapter - Home screen widget showing active map Built by D-Sync. For use with compatible ECUs and calibration files only.

About

BimmerDash

Features
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Transform your iPhone into a high-performance, gaming-inspired digital cockpit gauge cluster. BimmerDash is a premier OBD-II vehicle monitoring App designed specifically for Bimmer enthusiasts. 【 Engine & ECU Optimized for F-Chassis & B-Series / N-Series 】 BimmerDash is deeply optimized for B48, B58, S55, N20, and N55 engine control units (ECU), ensuring high-precision data logging and rapid PID polling response. 【 Apple Intelligence On-Device AI Diagnostics 】 β€’ 15-Minute Telemetry Backtest: Fully automatic analysis of boost curves, ignition timing advance, and knock retard events powered by the iPhone's local Apple Neural Engine (ANE). β€’ 100% On-Device Privacy: Zero dependencies on external cloud servers. Operates at full speed on tracks or remote roads without cellular signal. 【 Apple CarPlay & Live Activities 】 β€’ CarPlay Multi-Layout Support: Strictly complies with Apple driving safety guidelines with 10-second interval peak and average metric calculations. β€’ Live Activities: Real-time telemetry monitoring on Lock Screen and Dynamic Island. 【 18 Core Performance Metrics 】 Track both engine health and track-focused metrics simultaneously, including: β€’ Engine Speed (RPM) & Live Vehicle Speed β€’ Turbo Boost Pressure β€’ Engine Oil Temp & Coolant Temp β€’ Throttle Position β€’ Battery Voltage ...and many other critical data points to help you manage thermal efficiency and power delivery. 【 Hardware & Connection Requirements 】 β€’ This app requires a compatible aftermarket Bluetooth 4.0 (BLE / Bluetooth Low Energy) OBD-II adapter (e.g., vLinker BM+, OBDLink CX, or any standard BLE-compliant ELM327 / OBD2 adapter). β€’ Classic Bluetooth 2.0 / 3.0 (legacy non-BLE) and Wi-Fi-only OBD adapters are NOT supported by iOS and will not connect. β€’ Quick Tip: Do NOT pair the device in your iPhone’s iOS Bluetooth settings. Simply turn on Bluetooth, plug in your adapter, and connect seamlessly directly inside the app. 【 Racing Simulator Telemetry Support 】 β€’ Currently supports the Forza series with a dedicated racing dashboard display. 【 Disclaimer & Safety Information 】 β€’ Drive safely. Do NOT attempt to operate or configure this app while driving. β€’ Data displayed by this app is intended for performance monitoring and enthusiast reference only. It is not a substitute for professional factory diagnostic tools used for repair or mechanical troubleshooting. β€’ All vehicle platform codes, model names, and related terms are properties of their respective registered owners. This app is an independent third-party enthusiast monitoring tool. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ECU Map Switcher by D4 screens
BimmerDash4 screens

Verdict

The call

The clearest difference is in-app purchases: ECU Map Switcher by D at none against BimmerDash's 3. ECU Map Switcher by D also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. BimmerDash sells 3 in-app purchases, starting at $0.99 per month. ECU Map Switcher by D asks for nothing beyond the download.

Scorecard2 real differences Β· 4 level
ECU Map Switcher by D versus BimmerDash: the parameters behind the verdict, then further details
ParameterECU Map Switcher by DBimmerDash
PriceFreeFree
Update frequencyβ€”Every 9 days
AdsNo β€” betterYes
In-app purchasesNo β€” betterYes
DevicesiPhoneiPhone
Requires iOS17.0 β€” better18.6
Further details β€” not scored
Size1 MB21 MB
Age rating4+4+
DeveloperLUN LIUCHUN-YI LIN

In-app purchases

None

ECU Map Switcher by D

No in-app purchases

3 purchases

BimmerDash

Subscriptions2
  • Premium Monthly Pass$0.991 Month
  • Premium Annual Pass$9.991 Year
One-time1
  • BimmerDash Lifetime VIP$24.99

Questions

Is ECU Map Switcher by D free?
ECU Map Switcher by D is free to download, with no in-app purchases.
Is BimmerDash free?
BimmerDash is free to download, with in-app purchases available.
Do ECU Map Switcher by D or BimmerDash have ads?
BimmerDash shows ads; ECU Map Switcher by D does not.

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