Diag vs BimmerObd
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diag
This diagnostic software package is designed for BMW vehicles. It requires the MaxiAP200 main program to function. Access detailed vehicle diagnostics and information.
- BMW vehicle diagnostics
- Requires MaxiAP200
- Diagnostic software package
- Vehicle information access
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Diagnostic software package for BMW vehicles, which requires to work with the main program MaxiAP200 together.
BimmerObd
Transform your phone into a car diagnostic tool with a compatible OBD-II adapter. Read trouble codes, view live sensor data, and access an offline library for code explanations. Perform service resets and generate PDF reports for your vehicle's records.
- Read and clear trouble codes
- Offline code library with explanations
- Live sensor data display
- Battery health monitoring
- Readiness and freeze frame data
- Service resets and guides
- PDF report generation
- Multi-vehicle garage
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Turn your phone into a capable car diagnostic tool. Connect a standard, compatible Wi-Fi OBD-II adapter and read what your vehicle's computer is really reporting — trouble codes, live sensor data, readiness monitors and more. WHAT YOU CAN DO - Read and clear trouble codes. Scan the engine and other control modules for current, pending and permanent diagnostic trouble codes, then clear them after a repair. - Understand every code. A built-in offline library explains what each code means, its likely causes, common symptoms, suggested fixes and a typical repair cost range. No internet connection needed. - Watch live data. Real-time engine speed, vehicle speed, coolant and intake temperature, engine load, throttle position, fuel trims, airflow, timing and more on smooth custom gauges and charts. - Check battery health. Follow charging voltage with clear resting, cranking and charging readouts. - Readiness and freeze frame. See which emissions monitors are ready before an inspection, and view the sensor snapshot captured when a fault was set. - Service resets and guides. Step-by-step guidance for common maintenance procedures. - Reports. Save any scan and export a clean PDF to share with a workshop or keep for your records. - Garage. Store several vehicles and switch between them in a tap. - Knowledge base. Plain-language articles that explain codes, monitors and how the whole system works. COMPATIBILITY Works with most vehicles that support the OBD-II standard — generally cars and light trucks sold from 1996 onward in North America, and from 2001 (petrol) or 2004 (diesel) onward in Europe. Real-time features require a compatible Wi-Fi OBD-II adapter, sold separately by third parties. Demo Mode needs no hardware at all. PRIVATE BY DESIGN Everything runs on your device. No accounts, no sign-ups, no ads and no tracking. Your vehicle data, code lookups and reports stay on your phone. A NOTE This is an independent product and is not affiliated with, endorsed by or associated with any vehicle manufacturer or adapter maker. Diagnostic information is provided for guidance only — always confirm any repair with a qualified technician. Subscription Information: . Payment will be charged to your Apple ID upon purchase confirmation. . Subscriptions automatically renew unless canceled at least 24 hours before the current period ends. . Renewal charges occur within 24 hours before the current period ends. . Manage or cancel subscriptions in your App Store account settings. . If a free trial is offered, unused portions will be forfeited upon subscription purchase. Privacy Policy: https://doc-hosting.flycricket.io/lntm-s-privacy-policy/4d4e0876-516c-428c-b630-4e9ccd29f174/privacy Terms & Conditions: https://doc-hosting.flycricket.io/lntm-s-terms-conditions/635273cf-17ef-4330-ba8b-00940c49d9eb/terms
Screenshots
Verdict
The clearest difference is rating: BimmerObd at 5.0 against Diag's 2.8. BimmerObd also leads on update cadence (every 2 days vs every 2 months). Diag's advantage is in-app purchases (none vs 3) and ratings volume (23 vs 1). 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. BimmerObd sells 3 in-app purchases, starting at $8.99 per 7 days. Diag asks for nothing beyond the download.
BimmerObd holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: Diag has 23 ratings behind it against 1, so its average is the more settled of the two.
Diag ships an update every 2 months, BimmerObd every 2 days. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.
| Parameter | Diag | BimmerObd |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (23 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 9.1% of reviews | — |
| Number of ratings | 23 — better | 1 |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 582 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Autel Intelligent Technology Co., Ltd. | Nguyen Tra My Le |
In-app purchases
Diag
No in-app purchases
BimmerObd
- Premium Membership Weekly$8.997 Days
- Premium Membership Monthly3 Days trial$19.991 Month
- Premium Membership Yearly$49.991 Year








