# Troodon OBD vs OBD Quest

The clearest difference is in-app purchases: Troodon OBD at none against OBD Quest's 3. Troodon OBD also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. OBD Quest sells 3 in-app purchases, starting at $9.99 per month. Troodon OBD asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 13, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Troodon OBD | OBD Quest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/obd-quest/id6496854120/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 27 MB | 54 MB |
| Requires iOS | 15.0 | **14.0.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DevCom spol. s r.o.](https://appshunter.io/developer/1725153456) | [Shop Booster Ltd](https://appshunter.io/developer/1741157179) |

## What reviewers say

### Troodon OBD

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

**Features:** macOS Compatibility

**In-app purchases:** none


### OBD Quest

[App page](https://appshunter.io/ios/app/obd-quest/id6496854120)

Decode and understand car diagnostic trouble codes with this comprehensive interpreter. It provides detailed insights into fault codes, potential causes, and repair recommendations, complementing your existing OBD2 scanning tools. Access a vast database of codes across multiple languages and car brands to diagnose issues with confidence.

**Highlights:** Interpretation of over 85,000 OBD2 codes, Multilingual support (English, French, Italian, German, Portuguese, Spanish), Extensive coverage across auto makes and brands, Detailed insights for each code search, Unlimited code searches, AI-powered code interpretation

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Plan | $9.99 | per month |
| Yearly Pro Plan | $99.99 | per year |
| Pro Plan for 3 days only | $0.99 | one-time |


## Frequently asked questions

### Is Troodon OBD free?

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

### Is OBD Quest free?

OBD Quest is free to download, with in-app purchases available.

### Do Troodon OBD or OBD Quest have ads?

OBD Quest shows ads; Troodon OBD does not.

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

Troodon OBD ships an update every 3 weeks, and OBD Quest every 3 weeks. Most recently, Troodon OBD was updated on September 13, 2026 and OBD Quest on June 1, 2026.

---

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