# My Car Data vs OBD Quest

The clearest difference is in-app purchases: My Car Data at none against OBD Quest's 3. My Car Data also leads on ads (none vs shown) and iOS requirement (12.0 vs 14.0.0). On price, update cadence and device support there is nothing between them.

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

My Car Data ships an update monthly, OBD Quest every 3 weeks. The most recent releases landed on September 7, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | My Car Data | 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 | Monthly | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 54 MB |
| Requires iOS | **12.0** | 14.0.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AppStudio Blue B.V.](https://appshunter.io/developer/1505346175) | [Shop Booster Ltd](https://appshunter.io/developer/1741157179) |

## What reviewers say

### My Car Data

[App page](https://appshunter.io/ios/app/my-car-data/id1061162237)

**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 My Car Data free?

My Car Data 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 My Car Data or OBD Quest have ads?

OBD Quest shows ads; My Car Data does not.

### Which is updated more often, My Car Data or OBD Quest?

My Car Data ships an update monthly, and OBD Quest every 3 weeks. Most recently, My Car Data was updated on September 7, 2026 and OBD Quest on June 1, 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.*