BM500 vs OBDII Scanner ELM327 OBD2
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.
OBDII Scanner ELM327 OBD2
This app allows you to scan your car's trouble codes and view live data using an OBD2 Bluetooth adapter. It logs statistics and freeze frames for future reference, storing all diagnostic trouble codes (DTCs) on a server.
- Scan car trouble codes
- View live data
- Log live statistics
- Log freeze frame data
- Store DTCs on server
- Bluetooth and WiFi support
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This OBD2 Bluetooth Scanner free. NEW FEATURES... Log your live statistics and save for future. Log your Freeze frame and save for future. Your live and monitoring data will be like a screenshot of all the data names and values. OBD2 Diagnostics scanner with Bluetooth and wifi support. This Scanner Provides unrestricted access to your car trouble codes and live data. This OBDII scanner is supported by Bluetooth 4.0 and wifi ELM327 adapters. Store all your DTC's inside the app. DTC Codes are never deleted in app, they are stored on a data server. These codes will be stored and available as long as the app is on app store. PLEASE NOTE : Bluetooth device and Internet access is required to store codes and lookup DTC's The will be stored for as long as app is on app store. no limit on how many dtc's stored in our database. NOTICE : Under no circumstances will the developer of this application be held responsible for incidents resulting from the use and/or interpretation of the data in the application.
Screenshots
Verdict
The clearest difference is rating: OBDII Scanner ELM327 OBD2 at 3.6 against BM500's 3.0. OBDII Scanner ELM327 OBD2 also leads on update cadence (every 2 days vs fortnightly) and ratings volume (8 vs 2). BM500's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement 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. OBDII Scanner ELM327 OBD2 sells 1 one-off in-app purchase. BM500 asks for nothing beyond the download.
OBDII Scanner ELM327 OBD2 holds the better App Store score, 3.6 against 3.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively.
BM500 ships an update fortnightly, OBDII Scanner ELM327 OBD2 every 2 days. Both last shipped on October 24, 2026.
| Parameter | BM500 | OBDII Scanner ELM327 OBD2 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 3.6 (8 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 | 8 — better |
| Update frequency | Fortnightly | 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, iPod — better |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 8 MB | 14 MB |
| Age rating | 4+ | 17+ |
| Developer | 亮 侯 | paul moore |
Customer experience
BM500
OBDII Scanner ELM327 OBD2
In-app purchases
BM500
No in-app purchases
OBDII Scanner ELM327 OBD2
- UK$1.99
Questions
Is BM500 free?
Is OBDII Scanner ELM327 OBD2 free?
Which has better reviews, BM500 or OBDII Scanner ELM327 OBD2?
Do BM500 or OBDII Scanner ELM327 OBD2 have ads?
Which is updated more often, BM500 or OBDII Scanner ELM327 OBD2?
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