# OBDII Trouble Codes Lite vs ChkOBD OBD2 Analyzer

The clearest difference is rating: ChkOBD OBD2 Analyzer at 3.0 against OBDII Trouble Codes Lite's 2.1. ChkOBD OBD2 Analyzer also leads on ads (none vs shown) and update cadence (every 3 months vs every 25 months). OBDII Trouble Codes Lite's advantage is monetization model (ad-supported vs free with in-app purchases). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. OBDII Trouble Codes Lite sells 1 one-off in-app purchase and ChkOBD OBD2 Analyzer sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ChkOBD OBD2 Analyzer holds the better App Store score, 3.0 against 2.1. Both are backed by a comparable volume of ratings — 7 and 4 respectively.

OBDII Trouble Codes Lite ships an update every 25 months, ChkOBD OBD2 Analyzer every 3 months. The most recent releases landed on October 23, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | OBDII Trouble Codes Lite | ChkOBD OBD2 Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (7 ratings)](https://appshunter.io/ios/app/obdii-trouble-codes-lite/id688952518/reviews) | **[3.0 (4 ratings)](https://appshunter.io/ios/app/chkobd-obd2-analyzer/id1511585011/reviews)** |
| Number of ratings | **7** | 4 |
| Positive reviews | 31.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 25 months | **Every 3 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 54 MB | 63 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Chumakov](https://appshunter.io/developer/688892120) | [Check On-Board Diagnostics LLC](https://appshunter.io/developer/1511585010) |

## What reviewers say

### OBDII Trouble Codes Lite

[App page](https://appshunter.io/ios/app/obdii-trouble-codes-lite/id688952518)

Access a comprehensive database of OBD II diagnostic trouble codes. Quickly look up definitions for generic and manufacturer-specific codes without an internet connection. Easily copy and share code descriptions.

**Highlights:** Extensive OBD II code definitions, Offline access, No car model selection needed, Copy and share descriptions, Supports generic and manufacturer codes

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | one-time |


### 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 OBDII Trouble Codes Lite free?

OBDII Trouble Codes Lite is free to download, with in-app purchases available.

### Is ChkOBD OBD2 Analyzer free?

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

### Which has better reviews, OBDII Trouble Codes Lite or ChkOBD OBD2 Analyzer?

ChkOBD OBD2 Analyzer is rated higher. OBDII Trouble Codes Lite averages 2.1 out of 5 from 7 ratings, while ChkOBD OBD2 Analyzer averages 3.0 from 4 ratings.

### Do OBDII Trouble Codes Lite or ChkOBD OBD2 Analyzer have ads?

OBDII Trouble Codes Lite shows ads; ChkOBD OBD2 Analyzer does not.

### Which is updated more often, OBDII Trouble Codes Lite or ChkOBD OBD2 Analyzer?

OBDII Trouble Codes Lite ships an update every 25 months, and ChkOBD OBD2 Analyzer every 3 months. Most recently, OBDII Trouble Codes Lite was updated on October 23, 2026 and ChkOBD OBD2 Analyzer on October 13, 2026.

---

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