# Skill Trees Pro vs Cumulus

The clearest difference is in-app purchases: Cumulus at none against Skill Trees Pro's 1. Cumulus also leads on update cadence (every 2 days vs every 21 months) and device support. Skill Trees Pro's advantage is iOS requirement (15.1 vs 18.5). 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. Cumulus asks for nothing beyond the download.

Skill Trees Pro ships an update every 21 months, Cumulus every 2 days. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Skill Trees Pro | Cumulus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | Every 21 months | **Every 2 days** |
| Size | 51 MB | 11 MB |
| Requires iOS | **15.1** | 18.5 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Lucas Pennice](https://appshunter.io/developer/1742606759) | [ADAM CLAYTON HOLWERDA](https://appshunter.io/developer/1875786443) |

## 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 |


### Cumulus

[App page](https://appshunter.io/ios/app/cumulus-skill-tracker/id6758922894)

**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 Cumulus free?

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

### Which is updated more often, Skill Trees Pro or Cumulus?

Skill Trees Pro ships an update every 21 months, and Cumulus every 2 days. Most recently, Skill Trees Pro was updated on September 15, 2026 and Cumulus on September 18, 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.*