# ChkOBD OBD2 Analyzer vs OBDGO PRO

The clearest difference is rating: OBDGO PRO at 4.5 against ChkOBD OBD2 Analyzer's 3.0. OBDGO PRO also leads on in-app purchases (none vs 4) and ratings volume (31 vs 4). On price, update cadence, 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. OBDGO PRO asks for nothing beyond the download.

OBDGO PRO holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: OBDGO PRO has 31 ratings behind it against 4, so its average is the more settled of the two.

ChkOBD OBD2 Analyzer ships an update every 3 months, OBDGO PRO every 2 months. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ChkOBD OBD2 Analyzer | OBDGO PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/chkobd-obd2-analyzer/id1511585011/reviews) | **[4.5 (31 ratings)](https://appshunter.io/ios/app/obdgo-pro/id1593164986/reviews)** |
| Number of ratings | 4 | **31** |
| Positive reviews | — | 69.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 63 MB | 137 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Check On-Board Diagnostics LLC](https://appshunter.io/developer/1511585010) | [OBD GO TECH CO LTD](https://appshunter.io/developer/1627457928) |

## What reviewers say

### 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 |


### OBDGO PRO

[App page](https://appshunter.io/ios/app/obdgo-pro/id1593164986)

Unlock hidden vehicle features and perform OBD-II diagnostics with this app. It allows you to activate functionalities like wireless CarPlay, disable start-stop systems, and scan/clear trouble codes. Generate detailed diagnostic reports to understand and repair your car.

**Highlights:** Unlock hidden vehicle features, OBD-II code scanning and clearing, Generate and share diagnosis reports, Activate wireless CarPlay, Disable start-stop systems, View freeze frame data, Interactive data stream graphing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChkOBD OBD2 Analyzer free?

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

### Is OBDGO PRO free?

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

### Which has better reviews, ChkOBD OBD2 Analyzer or OBDGO PRO?

OBDGO PRO is rated higher. ChkOBD OBD2 Analyzer averages 3.0 out of 5 from 4 ratings, while OBDGO PRO averages 4.5 from 31 ratings.

### Do ChkOBD OBD2 Analyzer or OBDGO PRO have ads?

Neither ChkOBD OBD2 Analyzer nor OBDGO PRO shows ads.

### Which is updated more often, ChkOBD OBD2 Analyzer or OBDGO PRO?

ChkOBD OBD2 Analyzer ships an update every 3 months, and OBDGO PRO every 2 months. Most recently, ChkOBD OBD2 Analyzer was updated on October 13, 2026 and OBDGO PRO on October 24, 2026.

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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.*