BM500 vs OBDocker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BM500
This application connects to Bluetooth battery testers to perform comprehensive battery health checks. Users can easily test battery condition, cranking, and charging systems, with the ability to save and share professional results.
- Bluetooth connectivity to battery testers
- Battery condition testing
- Cranking system testing
- Charging system testing
- Save test data
- Share professional results
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BM500 is the App used for Bluetooth battery tester. It connects battery tester devices via Bluetooth. User can easily do test on battery condition, cranking and charging systems. All data can be saved and historical professional result can be shared.
OBDocker
This app acts as a professional OBD2 car scanner, enabling users to diagnose, service, and customize their vehicles. It offers comprehensive diagnostic modes, real-time data monitoring, and various service functions like oil resets and battery registration.
- Triple-mode diagnostics (Full-Systems, Multi-Systems, Quick Scan)
- Triple-mode live data monitoring (Health, Engine, Dash)
- Full-cycle service functions (Emissions Pre-Check, Control Tests, Oil Reset, Battery Registration)
- One-click car setting adjustments and retrofits
- Supports a wide range of car brands and models
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Crafted with user-friendliness and power in mind, OBDocker is a professional OBD2 car scanner app that empowers you to diagnose, service, and customize your vehicles with ease and precision. ************************* KEY FEATURES → Triple-Mode Diagnostics ○ Full-Systems Diagnose: One-Click OE-Level full-systems diagnostics. ○ Multi-Systems Diagnose: Scan multiple systems through ECUs filtering such as TMS, SRS, ABS, TCM, BCM and many more. ○ Quick Scan: Swiftly read and clear engine fault codes to maintain a smooth drive. → Triple-Mode Live Data ○ Health Monitor: Track every systems performance by diving into real-time parameters. ○ Engine Monitor: Monitor your engine's performance. ○ Dash Monitor: Visualize your vehicle's metrics in real-time. → Full-Cycle Service ○ Emissions Pre-Check: Test your emissions and pass with confidence before your official check. ○ Control Tests: Perform EVAP Leak Test, DPF and Inducement System Reinitialization. ○ Oil Reset: Easily reset oil change reminders and maintenance lights to keep your car's records up to date. ○ Battery Registration: Register the battery replacement to notify the battery management. → On-Click Modification ○ Adjustments: Adjust different car settings and customize them by one-click. ○ Retrofits: Easily adapt additional vehicle parts after installation. ************************* OBD ADAPTERS OBDocker requires a compatible OBD adapter to work. We recommend the following for the best experience: - High Performance: Vlinker Series, OBDLink Series, MotorSure OBD Tool, Carista EVO. - Middle Performance: All genuine adapters compatible with ELM327 / ELM329, including Veepeak Series, Vgate iCar Series, UniCarScan, NEXAS, Carista, Rodoil ScanX, and more. - Low Performance (Not Recommended): Cheep Chinese clones ELM. ************************* SUPPORTED CARS OBDocker is compatible with a wide range of vehicles, covering both standard and advanced modes: - Standard Mode: Universal compatibility with OBD2 / OBD-II or EOBD vehicles worldwide. - Advanced Mode: Toyota, Lexus, Nissan, infiniti, Honda, Acura, Hyundai, Kia, Volkswagen, Audi, Skoda, SEAT, Mercedes-Benz, BMW, Mini, Porsche, Ford, Lincoln, Chevrolet, Cadillac, GMC, Buick. And still working really hard to add more… ************************* PLANS: OBDocker offers a free trial for full feature access. To unlock unlimited potential, choose from our Pro or Pro Max subscriptions. NOTE: Vehicle ECUs vary in the amount of sensors supported. This app can’t show you something, that is not provided by your car. Terms and Conditions: https://www.obdocker.com/terms-and-coditions Privacy Policy: https://www.obdocker.com/privacy-policy Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: OBDocker at 47% against BM500's 0%. OBDocker also leads on rating (4.2 vs 3.0) and ratings volume (17 vs 2). BM500's advantage is in-app purchases (none vs 7). On price, update cadence, 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. OBDocker sells 7 in-app purchases, starting at $2.99 per month. BM500 asks for nothing beyond the download.
OBDocker holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: OBDocker has 17 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of BM500's written reviews are positive against 47% of OBDocker's.
Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 16, 2026 and October 1, 2026 respectively.
| Parameter | BM500 | OBDocker |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.2 (17 ratings) — better |
| Positive reviews | 0.0% of reviews | 46.9% of reviews — better |
| Number of ratings | 2 | 17 — better |
| Update frequency | Fortnightly | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 8 MB | 238 MB |
| Age rating | 4+ | 4+ |
| Developer | 亮 侯 | Motorsure. Inc |
Customer experience
BM500
OBDocker
In-app purchases
BM500
No in-app purchases
OBDocker
- OBD Pro (Monthly)$2.991 Month
- OBD Pro Max (Monthly)$7.991 Month
- OBD2 Pro (6 Months)$14.996 Months
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- OBD Pro (Annual)7 Days trial$17.991 Year
- Mechanic Access (Quarterly)$19.993 Months
- OBD Pro Max (Annual)7 Days trial$47.991 Year
- OBD Pro Max (Permanent)$119.99
Questions
Is BM500 free?
Is OBDocker free?
Which has better reviews, BM500 or OBDocker?
Do BM500 or OBDocker have ads?
Which is updated more often, BM500 or OBDocker?
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