AIOBD13 vs ELMCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AIOBD13
Connects to your vehicle's diagnostic system via Bluetooth to read and log engine data on iOS devices. Monitor your car's performance and driving habits to improve MPG and maintain optimal operation.
- Bluetooth diagnostic system connection
- Reads and logs engine data
- Monitors vehicle conditions
- Improves MPG tracking
- Tracks driving habits
- Supports OBDII/EOBD compliant vehicles since 1996
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The AIOBD13 establishes connection with a vehicle's diagnostic system via Bluetooth and reads the data on iPhones iPad or iPad. It can collect and log the engine data of all OBDII/EOBD compliant cars, SUVs, light-duty truck and mini-vans sold worldwide since 1996 during the vehicle is driving, and monitor the vehicle conditions when it is operating. Also it is a great tool that empowers you to get MPG up and keep your car running at peek performance by continuously logging engine data of every trip you make and watching how your car is being driven.
ELMCheck
Verify the authenticity and functionality of your OBD-II scanner. This app runs comprehensive tests on ELM327 commands to report supported features, ensuring safe and reliable use with your vehicle.
- Authenticity testing for OBD-II scanners
- Comprehensive ELM327 command test suite
- Reports actual supported features
- Ensures safe scanner usage
- Basic tests are free
- Unlock full suite with in-app purchase
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Check the authenticity of your OBD-II scanner with ELMCheck. Most OBD-II scanners on the market use some variation of ELM327, but did you know that many scanners use clones of the original ELM327? It can be hard to tell, because these clones will work well enough for basic use but fail in unexpected scenarios. This is where ELMCheck comes in. ELMCheck offers a comprehensive set of test cases that cover the entire documented set of ELM327 commands. Regardless of which version your scanner says it is, ELMCheck can provide a comprehensive report of the features that are actually supported. Get the confidence you need to use your OBD-II scanner on your vehicle safely. ELMCheck is free to run basic tests. An in-app purchase will unlock the full test suite.
Screenshots
Verdict
The clearest difference is review sentiment: ELMCheck at 100% against AIOBD13's 50%. ELMCheck also leads on rating (5.0 vs 1.0) and update cadence (every 2 weeks vs every 2 months). AIOBD13's advantage is in-app purchases (none vs 1) and iOS requirement (7.0 vs 18.0). On price, ratings volume, 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. ELMCheck sells 1 one-off in-app purchase. AIOBD13 asks for nothing beyond the download.
ELMCheck holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 50% of AIOBD13's written reviews are positive against 100% of ELMCheck's.
AIOBD13 ships an update every 2 months, ELMCheck every 2 weeks. The most recent releases landed on September 25, 2026 and October 24, 2026 respectively.
| Parameter | AIOBD13 | ELMCheck |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 7.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 52 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | 翔宇 金 | Fearless design, LLC |
Customer experience
AIOBD13
ELMCheck
In-app purchases
AIOBD13
No in-app purchases
ELMCheck
- Comprehensive testing$2.99
