# Skill Trees Pro vs Diary Lens

The clearest difference is in-app purchases: Diary Lens at none against Skill Trees Pro's 1. Diary Lens also leads on device support and iOS requirement (13.0 vs 15.1). On price there is nothing between them.

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

## The numbers

| Metric | Skill Trees Pro | Diary Lens |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | Every 21 months | — |
| Size | 51 MB | 29 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lucas Pennice](https://appshunter.io/developer/1742606759) | [John Darkwa](https://appshunter.io/developer/1816849776) |

## 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 |


### Diary Lens

[App page](https://appshunter.io/ios/app/diary-lens/id6761788475)

**Features:** macOS Compatibility

**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 Diary Lens free?

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

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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.*