QualiT Check vs ECU Map Switcher by D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QualiT Check
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The Qualit Check app enables easy checking of error codes, mileage, and VINs. Developed by Carly the app offers precise diagnostic features and insights into vehicle status to identify and resolve potential issues early.
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.
Screenshots
Verdict
QualiT Check and ECU Map Switcher by D are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | QualiT Check | ECU Map Switcher by D |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 62 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Carly Solutions GmbH Co KG | LUN LIU |
In-app purchases
QualiT Check
No in-app purchases
ECU Map Switcher by D
No in-app purchases
