# iOBD2 vs ChkOBD OBD2 Analyzer

The clearest difference is rating: ChkOBD OBD2 Analyzer at 3.0 against iOBD2's 1.0. ChkOBD OBD2 Analyzer also leads on ratings volume (4 vs 1). iOBD2's advantage is in-app purchases (none vs 4) and iOS requirement (7.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. ChkOBD OBD2 Analyzer sells 4 in-app purchases, starting at $4.99 per month. iOBD2 asks for nothing beyond the download.

ChkOBD OBD2 Analyzer holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

## The numbers

| Metric | iOBD2 | ChkOBD OBD2 Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/iobd2-cf/id1179901105/reviews) | **[3.0 (4 ratings)](https://appshunter.io/ios/app/chkobd-obd2-analyzer/id1511585011/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 63 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [翔宇 金](https://appshunter.io/developer/528881861) | [Check On-Board Diagnostics LLC](https://appshunter.io/developer/1511585010) |

## 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


### ChkOBD OBD2 Analyzer

[App page](https://appshunter.io/ios/app/chkobd-obd2-analyzer/id1511585011)

Connect your iPhone or iPad to your car's engine to view vital data. Access basic engine values for free, with in-app purchases for advanced diagnostics, smog check readiness, VIN analysis, and error decoding.

**Highlights:** View engine values, In-app purchase for advanced data, Smog Check Assistant, VIN Analyzer, Error Decoder and Reset, Bluetooth adapter compatibility check

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smog Check Assistant | $4.99 | per month |
| VIN Analyzer | $1.99 | one-time |
| Error Analyzer | $2.99 | one-time |
| Advance Engine Values | $4.99 | one-time |


## Frequently asked questions

### Is iOBD2 free?

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

### Is ChkOBD OBD2 Analyzer free?

ChkOBD OBD2 Analyzer is free to download, with in-app purchases available.

### Which has better reviews, iOBD2 or ChkOBD OBD2 Analyzer?

ChkOBD OBD2 Analyzer is rated higher. iOBD2 averages 1.0 out of 5 from 1 ratings, while ChkOBD OBD2 Analyzer averages 3.0 from 4 ratings.

### Do iOBD2 or ChkOBD OBD2 Analyzer have ads?

Neither iOBD2 nor ChkOBD OBD2 Analyzer shows ads.

---

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