# iOBD2 vs Plier

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.

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.

## The numbers

| Metric | iOBD2 | Plier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/iobd2-cf/id1179901105/reviews) | **[4.6 (15 ratings)](https://appshunter.io/ios/app/plier-car-maintenance-tracker/id6742336175/reviews)** |
| Number of ratings | 1 | **15** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 54 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [翔宇 金](https://appshunter.io/developer/528881861) | [Heap Labs LLC](https://appshunter.io/developer/840318089) |

## What reviewers say

### iOBD2

[App page](https://appshunter.io/ios/app/iobd2-cf/id1179901105)

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.

**Highlights:** Read on-board data, Code reading and clearing, Data flow monitoring, Version information, Action testing, ECU programming

**Features:** macOS Compatibility

**In-app purchases:** none


### Plier

[App page](https://appshunter.io/ios/app/plier-car-maintenance-tracker/id6742336175)

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.

**Highlights:** AI-driven diagnostic reports, Real-time OBD2 data and graphs, Check engine light insights, Repair cost estimation, ELM327 Bluetooth compatibility, Troubleshoot engine codes

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Weekly) | $6.99 | per 7 days |
| Pro ( 1 Year ) | $49.99 | per year |


## Frequently asked questions

### Is iOBD2 free?

iOBD2 is free to download, with no in-app purchases.

### Is Plier free?

Plier is free to download, with in-app purchases available.

### Which has better reviews, iOBD2 or Plier?

Plier is rated higher. iOBD2 averages 1.0 out of 5 from 1 ratings, while Plier averages 4.6 from 15 ratings.

### Do iOBD2 or Plier have ads?

Neither iOBD2 nor Plier shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*