# ThinkCar vs ChkOBD OBD2 Analyzer

The clearest difference is in-app purchases: ThinkCar at none against ChkOBD OBD2 Analyzer's 4. ThinkCar also leads on update cadence (monthly vs every 3 months) and ratings volume (49 vs 4). On price, rating, 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. ThinkCar asks for nothing beyond the download.

ChkOBD OBD2 Analyzer holds the better App Store score, 3.0 against 2.8. That said, the two scores are not equally well evidenced: ThinkCar has 49 ratings behind it against 4, so its average is the more settled of the two.

ThinkCar ships an update monthly, ChkOBD OBD2 Analyzer every 3 months. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | ThinkCar | ChkOBD OBD2 Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (49 ratings)](https://appshunter.io/ios/app/thinkcar/id1464847380/reviews) | **[3.0 (4 ratings)](https://appshunter.io/ios/app/chkobd-obd2-analyzer/id1511585011/reviews)** |
| Number of ratings | **49** | 4 |
| Positive reviews | 36.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 234 MB | 63 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [THINKCAR INC](https://appshunter.io/developer/1464847379) | [Check On-Board Diagnostics LLC](https://appshunter.io/developer/1511585010) |

## What reviewers say

### ThinkCar

[App page](https://appshunter.io/ios/app/thinkcar/id1464847380)

This app connects to a compatible OBD2 scan tool to diagnose vehicle issues and provide detailed health reports. It offers real-time data, full system inspections, and a community forum for car enthusiasts and mechanics.

**Highlights:** Real-time vehicle data dashboard, Full OBD2 functions (10 modes), Enhanced full vehicle systems inspection, OBD2 data recording (Black Box), Online community for car enthusiasts

**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 ThinkCar free?

ThinkCar 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, ThinkCar or ChkOBD OBD2 Analyzer?

ChkOBD OBD2 Analyzer is rated higher. ThinkCar averages 2.8 out of 5 from 49 ratings, while ChkOBD OBD2 Analyzer averages 3.0 from 4 ratings.

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

Neither ThinkCar nor ChkOBD OBD2 Analyzer shows ads.

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

ThinkCar ships an update monthly, and ChkOBD OBD2 Analyzer every 3 months. Most recently, ThinkCar was updated on October 21, 2026 and ChkOBD OBD2 Analyzer on October 13, 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.*