# Skill Trees Pro vs Garage OBD II scanner

The clearest difference is in-app purchases: Garage OBD II scanner at none against Skill Trees Pro's 1. Garage OBD II scanner also leads on update cadence (weekly vs every 21 months) and device support. On price and iOS requirement there is nothing between them.

Both are free to download. Skill Trees Pro sells 1 in-app purchase, starting at $19.99 per year. Garage OBD II scanner asks for nothing beyond the download.

Skill Trees Pro ships an update every 21 months, Garage OBD II scanner weekly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Skill Trees Pro | Garage OBD II scanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | Every 21 months | **Weekly** |
| Size | 51 MB | 37 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lucas Pennice](https://appshunter.io/developer/1742606759) | [Digital Garage LLC](https://appshunter.io/developer/1725465179) |

## What reviewers say

### Skill Trees Pro

[App page](https://appshunter.io/ios/app/skill-trees-pro/id6670319290)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $19.99 | per year |


### Garage OBD II scanner

[App page](https://appshunter.io/ios/app/garage-obd-ii-scanner/id6749448090)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Skill Trees Pro free?

Skill Trees Pro is free to download, with in-app purchases available.

### Is Garage OBD II scanner free?

Garage OBD II scanner is free to download, with no in-app purchases.

### Which is updated more often, Skill Trees Pro or Garage OBD II scanner?

Skill Trees Pro ships an update every 21 months, and Garage OBD II scanner weekly. Most recently, Skill Trees Pro was updated on October 25, 2026 and Garage OBD II scanner on October 28, 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.*