# OBD Quest vs INFINIT SMART KEY

The clearest difference is in-app purchases: INFINIT SMART KEY at none against OBD Quest's 3. INFINIT SMART KEY 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. INFINIT SMART KEY asks for nothing beyond the download.

OBD Quest ships an update every 3 weeks, INFINIT SMART KEY every 5 weeks. The most recent releases landed on June 1, 2026 and June 8, 2026 respectively.

## The numbers

| Metric | OBD Quest | INFINIT SMART KEY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/obd-quest/id6496854120/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 54 MB | 54 MB |
| Requires iOS | 14.0.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shop Booster Ltd](https://appshunter.io/developer/1741157179) | [Hatem Alsehimi](https://appshunter.io/developer/1797489738) |

## What reviewers say

### 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 |


### INFINIT SMART KEY

[App page](https://appshunter.io/ios/app/infinit-smart-key/id6743720893)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OBD Quest free?

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

### Is INFINIT SMART KEY free?

INFINIT SMART KEY is free to download, with no in-app purchases.

### Do OBD Quest or INFINIT SMART KEY have ads?

OBD Quest shows ads; INFINIT SMART KEY does not.

### Which is updated more often, OBD Quest or INFINIT SMART KEY?

OBD Quest ships an update every 3 weeks, and INFINIT SMART KEY every 5 weeks. Most recently, OBD Quest was updated on June 1, 2026 and INFINIT SMART KEY on June 8, 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.*