# Simple Mind Tree vs 3

The clearest difference is in-app purchases: Simple Mind Tree at none against 3's 1. Simple Mind Tree also leads on update cadence (weekly vs every 6 weeks) and iOS requirement (15.1 vs 17.2). On price, ads and device support there is nothing between them.

Both are free to download. 3 sells 1 one-off in-app purchase. Simple Mind Tree asks for nothing beyond the download.

Simple Mind Tree ships an update weekly, 3 every 6 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Simple Mind Tree | 3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Size | 30 MB | 11 MB |
| Requires iOS | **15.1** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cheonsoo Park](https://appshunter.io/developer/1546728209) | [Minje Kim](https://appshunter.io/developer/1889530864) |

## What reviewers say

### Simple Mind Tree

[App page](https://appshunter.io/ios/app/simple-mind-tree/id6759855090)

**Features:** macOS Compatibility

**In-app purchases:** none


### 3

[App page](https://appshunter.io/ios/app/3-tap-memo-sticky-notes/id6761423321)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Samsepan Pro | $0.99 | one-time |


## Frequently asked questions

### Is Simple Mind Tree free?

Simple Mind Tree is free to download, with no in-app purchases.

### Is 3 free?

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

### Do Simple Mind Tree or 3 have ads?

Neither Simple Mind Tree nor 3 shows ads.

### Which is updated more often, Simple Mind Tree or 3?

Simple Mind Tree ships an update weekly, and 3 every 6 weeks. Most recently, Simple Mind Tree was updated on October 25, 2026 and 3 on October 31, 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.*