iOBD2 vs Plier
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iOBD2
Diagnose your Chun Feng motorcycle's electronic control system with this app. It reads on-board data, clears codes, and provides real-time monitoring for comprehensive maintenance and safe driving.
- Read on-board data
- Code reading and clearing
- Data flow monitoring
- Version information
- Action testing
- ECU programming
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iOBD2-CF is an APP for the diagnosis of Chun Feng electronic control system, which enables your iPhone to have various functions, such as reading on-board data of Chun Feng motorcycles. The APP is equipped with a small iOBD2 connector, which can diagnose various electronic control systems in code reading, code clearing, data flow, version information, action testing, ECU programming, etc. It takes great care of your car on all sorts of different levels, and ensures your safe driving. With this APP, you can diagnose your car’s abnormalities like experts do, with real-time monitoring of various vehicle data, offering the most comprehensive and authoritative maintenance guide, it provides the most powerful technical support for DIYers and minimizes your vehicle’s loss. It’s not just a vehicle diagnosis APP, we are looking forward to your participation and experience on more functions! Note: The software can only be used with the iOBD2 connector successfully activated by XTooltech. Please contact the seller to get more details. Thank you! For more information, please visit our iOBD2 product page: www.iobd2.com
Plier
Transform your iPhone into an AI-powered car diagnostic tool. Connect to your vehicle via an OBD2 device to understand its health, diagnose issues, and estimate repair costs.
- AI-driven diagnostic reports
- Real-time OBD2 data and graphs
- Check engine light insights
- Repair cost estimation
- ELM327 Bluetooth compatibility
- Troubleshoot engine codes
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Turn your iPhone into a clear, capable OBD2 car scanner with Plier.AI. Connect a compatible Bluetooth ELM327 adapter to read diagnostic trouble codes, view live sensor data and graphs, and understand check-engine warnings. The new Vehicle Health Center brings together a health snapshot, mileage-based maintenance planning, official NHTSA recall checks for saved vehicles, inspection-readiness guidance, and a report you can share with a mechanic. Ask the AI Mechanic vehicle-aware questions about symptoms and active codes. Plier suggests practical tests, explains possible causes, and helps you decide what to check before replacing parts. You can also review supported freeze-frame and oxygen-sensor test data. Available data varies by vehicle, adapter, protocol, and model year. AI guidance and health scores can be wrong and are not proof that a vehicle is safe. Confirm safety-critical findings with a qualified technician. Some features require Plier Pro. Terms of Use: https://plier.ai/tos
Screenshots
Verdict
The clearest difference is review sentiment: Plier at 100% against iOBD2's 0%. Plier also leads on rating (4.6 vs 1.0) and ratings volume (15 vs 1). iOBD2's advantage is in-app purchases (none vs 2) and iOS requirement (7.0 vs 15.0). 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. Plier sells 2 in-app purchases, starting at $6.99 per 7 days. iOBD2 asks for nothing beyond the download.
Plier holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Plier has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of iOBD2's written reviews are positive against 100% of Plier's.
| Parameter | iOBD2 | Plier |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.6 (15 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 15 — better |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 7.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 37 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | 翔宇 金 | Heap Labs LLC |
Customer experience
iOBD2
Plier
In-app purchases
iOBD2
No in-app purchases
Plier
- Pro (Weekly)3 Days trial$6.997 Days
- Pro ( 1 Year )$49.991 Year









