# iCarScan vs Troodon OBD

The clearest difference is update cadence: Troodon OBD at every 3 weeks against iCarScan's every 5 months. iCarScan's advantage is iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iCarScan ships an update every 5 months, Troodon OBD every 3 weeks. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | iCarScan | Troodon OBD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (14 ratings)](https://appshunter.io/ios/app/icarscan/id1508699839/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 324 MB | 27 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [THINKCAR INC](https://appshunter.io/developer/1464847379) | [DevCom spol. s r.o.](https://appshunter.io/developer/1725153456) |

## What reviewers say

### iCarScan

[App page](https://appshunter.io/ios/app/icarscan/id1508699839)

Access professional-level automotive diagnostic functions, including reading and clearing fault codes, viewing live data, and performing special tests. Supports a wide range of vehicle manufacturers with automatic VIN recognition and one-key diagnosis. Generates detailed diagnostic reports for informed maintenance.

**Highlights:** OE-level professional functions, Full OBD II diagnosis, Support for 39+ manufacturers, Automatic VIN reading, One-key diagnosis, Fault code interpretation, Diagnostic report generation

**Features:** macOS Compatibility

**In-app purchases:** none


### Troodon OBD

[App page](https://appshunter.io/ios/app/troodon-obd/id6475777811)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iCarScan free?

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

### Is Troodon OBD free?

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

### Do iCarScan or Troodon OBD have ads?

Neither iCarScan nor Troodon OBD shows ads.

### Which is updated more often, iCarScan or Troodon OBD?

iCarScan ships an update every 5 months, and Troodon OBD every 3 weeks. Most recently, iCarScan was updated on October 7, 2026 and Troodon OBD on October 17, 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.*