# Skill Trees Pro vs Surely

The clearest difference is in-app purchases: Surely at none against Skill Trees Pro's 1. Surely also leads on update cadence (every 3 months vs every 21 months) and device support. Skill Trees Pro's advantage is iOS requirement (15.1 vs 17.5). 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. Surely asks for nothing beyond the download.

Skill Trees Pro ships an update every 21 months, Surely every 3 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Skill Trees Pro | Surely |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/surely-smarter-decisions/id6736951802/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | Every 21 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 51 MB | 2 MB |
| Requires iOS | **15.1** | 17.5 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Lucas Pennice](https://appshunter.io/developer/1742606759) | [伟凌 张](https://appshunter.io/developer/1721459605) |

## 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 |


### Surely

[App page](https://appshunter.io/ios/app/surely-smarter-decisions/id6736951802)

This app helps you make better decisions by easily mapping out the pros and cons of any choice. Organize your thoughts with tags and gain clarity to make confident choices, from major life changes to everyday plans.

**Highlights:** Effortless Pros & Cons mapping, Organize decisions with tags, Clear visual comparison, Boost productivity, Reduce decision overwhelm, Build decision confidence

**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 Surely free?

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

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

Skill Trees Pro ships an update every 21 months, and Surely every 3 months. Most recently, Skill Trees Pro was updated on October 2, 2026 and Surely on October 6, 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.*