Comparison

OBD2 Car Scanner vs BM500

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

Head to head
About

OBD2 Car Scanner

Transform your smartphone into a professional car diagnostic tool. Read and clear engine fault codes, monitor real-time sensor data, and perform advanced diagnostics without a mechanic. Supports a wide range of OBD2 compliant vehicles.

Highlights
  • Read and clear engine fault codes
  • Monitor real-time sensor data
  • Turn off check engine light
  • VIN decoder
  • Acceleration performance test
  • Generate PDF diagnostic reports
Features
Read full description

EOBD Facile is the OBD2 car scanner trusted by over 5 million drivers. Connect an ELM327 Bluetooth or WiFi adapter and turn your smartphone into a professional OBD2 diagnostic tool - monitor engine torque, read fault codes, no mechanic needed. ◉ CHECK ENGINE LIGHT IS ON? Run a complete OBD2 car diagnostic in seconds. EOBD Facile reads and clears engine and transmission fault codes (DTCs) so you know exactly what's wrong. Our code database covers 15,000+ definitions, including manufacturer-specific codes for BMW, Audi, Volkswagen, Ford, Mercedes, Renault, Peugeot, Fiat, Opel, Kia, Nissan, Toyota, Volvo, Subaru, Jeep, Lexus and more. ◉ REAL-TIME OBD2 LIVE DATA Monitor your vehicle sensors in real time: engine RPM, coolant temperature, vehicle speed, ignition timing, engine torque, air intake, fuel pressure, EGR, DPF and more. Record sensor sessions and replay them for deeper analysis. ◉ OBD2 SCANNER FEATURES — Read and clear engine and transmission fault codes — Turn off the check engine light from your dashboard — Display manufacturer-specific error codes — Real-time engine torque, RPM and sensor monitoring with live graphs — VIN decoder for vehicle identification — Sensor coherence test for advanced diagnostics — Acceleration performance test (0-60 mph, 0-100 km/h) — Trip recording and data logging — Generate and share PDF diagnostic reports — Built-in ELM327 adapter quality test ◉ OBD2 COMPATIBLE VEHICLES Works with all vehicles compliant with the OBD2 standard (also referred to as OBD-II, OBD 2, EOBD or OBDii). Gasoline cars from 2001, diesel from 2004, and commercial vehicles from 2007 are supported. Thousands of cars verified by our community — check the full list on our website. ◉ EASY CONNECTION EOBD Facile connects to any standard ELM327 OBD2 Bluetooth or WiFi adapter, including klavkarr, Vgate, Veepeak and other compatible car code readers. Plug into your car's OBD 2 port, launch the app, and start scanning. Warning: Many cheap ELM327 clones sold online do not function correctly. Use our built-in adapter test to verify compatibility before buying a new one. Can't find your OBD2 port? Download our free app "Where is my OBD2 port?" to locate it. ◉ UNLOCK PLUS FOR PRO DIAGNOSTICS The PLUS version unlocks manufacturer-specific codes, unlimited sensor recording, PDF reports, VIN decoding, and sensor coherence testing — professional-grade OBD2 diagnostics in your pocket. Download EOBD Facile - the OBD2 car scanner trusted by 5 million+ drivers. ◉ klavkarr.com

About

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.

Highlights
  • Bluetooth connectivity to battery testers
  • Battery condition testing
  • Cranking system testing
  • Charging system testing
  • Save test data
  • Share professional results
Features
Read full description

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.

Screenshots

OBD2 Car Scanner4 screens
BM5004 screens

Verdict

The call

The clearest difference is review sentiment: OBD2 Car Scanner at 55% against BM500's 0%. OBD2 Car Scanner also leads on rating (4.6 vs 3.0) and ratings volume (5.1K vs 2). BM500's advantage is in-app purchases (none vs 3) and update cadence (fortnightly vs every 5 weeks). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OBD2 Car Scanner sells 3 one-off in-app purchases. BM500 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OBD2 Car Scanner holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: OBD2 Car Scanner has 5.1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 55% of OBD2 Car Scanner's written reviews are positive against 0% of BM500's.

UpkeepUpdate frequency

OBD2 Car Scanner ships an update every 5 weeks, BM500 fortnightly. The most recent releases landed on October 16, 2026 and September 16, 2026 respectively.

Scorecard7 real differences · 3 level
OBD2 Car Scanner versus BM500: the parameters behind the verdict, then further details
ParameterOBD2 Car ScannerBM500
PriceFreeFree
Rating4.6 (5.1K ratings) — better3.0 (2 ratings)
Positive reviews54.6% of reviews — better0.0% of reviews
Number of ratings5.1K — better2
Update frequencyEvery 5 weeksFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.012.0 — better
Further details — not scored
Size68 MB8 MB
Age rating4+4+
DeveloperOUTILS OBD FACILE SARL亮 侯

Customer experience

OBD2 Car Scanner

All ratings5,098 ratings
Positive89.9%
Neutral4.5%
Negative5.6%
Written reviews1,002 reviews
Positive54.6%
Neutral7.0%
Negative38.4%

BM500

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

OBD2 Car Scanner

Reported bugs

3 issues
  • Unable to connect to some OBD2 adapters
  • Incorrect or missing sensor data
  • Paid version not functioning as expected

Requested features

4 requests
  • Add support for more vehicle makes and models
  • Improve user interface and data visualization
  • Ability to reset service lights and perform more advanced diagnostics
  • Integrate with vehicle GPS for location-based data

BM500

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

OBD2 Car Scanner

One-time3
  • Basic Edition$19.99
  • Upgrade to Plus Edition$20.99
  • Plus edition$39.99
None

BM500

No in-app purchases

Questions

Is OBD2 Car Scanner free?
OBD2 Car Scanner is free to download, with in-app purchases available.
Is BM500 free?
BM500 is free to download, with no in-app purchases.
Which has better reviews, OBD2 Car Scanner or BM500?
OBD2 Car Scanner is rated higher. OBD2 Car Scanner averages 4.6 out of 5 from 5.1K ratings, while BM500 averages 3.0 from 2 ratings.
Do OBD2 Car Scanner or BM500 have ads?
Neither OBD2 Car Scanner nor BM500 shows ads.
Which is updated more often, OBD2 Car Scanner or BM500?
OBD2 Car Scanner ships an update every 5 weeks, and BM500 fortnightly. Most recently, OBD2 Car Scanner was updated on October 16, 2026 and BM500 on September 16, 2026.

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