# ChkOBD OBD2 Analyzer vs OBD GO

The clearest difference is rating: OBD GO at 4.6 against ChkOBD OBD2 Analyzer's 3.0. OBD GO also leads on in-app purchases (none vs 4) and ratings volume (15 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. OBD GO asks for nothing beyond the download.

OBD GO holds the better App Store score, 4.6 against 3.0. Both are backed by a comparable volume of ratings — 4 and 15 respectively.

ChkOBD OBD2 Analyzer ships an update every 3 months, OBD GO every 2 months. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ChkOBD OBD2 Analyzer | OBD GO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/chkobd-obd2-analyzer/id1511585011/reviews) | **[4.6 (15 ratings)](https://appshunter.io/ios/app/obd-go/id1579007608/reviews)** |
| Number of ratings | 4 | **15** |
| Positive reviews | — | 50.0% 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 | 103 MB |
| Requires iOS | 13.0 | **10.0** |
| 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 |


### OBD GO

[App page](https://appshunter.io/ios/app/obd-go/id1579007608)

This app helps you understand your car's diagnostic trouble codes by translating them into plain English and offering validated fixes. It supports a wide range of vehicles and provides detailed reports, graphing, and logging of data streams.

**Highlights:** Scan and clear trouble codes, Generate and share diagnosis reports, Translate cryptic code definitions, Vehicle coverage for major brands, Mode 6 and Smog Readiness checks, Interactive data graphing and logging, Wireless Bluetooth connection

**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 OBD GO free?

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

### Which has better reviews, ChkOBD OBD2 Analyzer or OBD GO?

OBD GO is rated higher. ChkOBD OBD2 Analyzer averages 3.0 out of 5 from 4 ratings, while OBD GO averages 4.6 from 15 ratings.

### Do ChkOBD OBD2 Analyzer or OBD GO have ads?

Neither ChkOBD OBD2 Analyzer nor OBD GO shows ads.

### Which is updated more often, ChkOBD OBD2 Analyzer or OBD GO?

ChkOBD OBD2 Analyzer ships an update every 3 months, and OBD GO every 2 months. Most recently, ChkOBD OBD2 Analyzer was updated on October 13, 2026 and OBD GO on October 1, 2026.

---

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