# Structree vs MindPen

The clearest difference is ads: MindPen at none against Structree's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Structree sells 2 one-off in-app purchases and MindPen sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Structree ships an update every 5 days, MindPen every 6 days. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Structree | MindPen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 6 days |
| Size | 28 MB | 36 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Yuichi Sato](https://appshunter.io/developer/1894470170) | [MOBIZATE](https://appshunter.io/developer/1885913602) |

## What reviewers say

### Structree

[App page](https://appshunter.io/ios/app/structree/id6769936533)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |
| Pro Lifetime | $14.99 | one-time |


### MindPen

[App page](https://appshunter.io/ios/app/mindpenmind-map-brainstorming/id6773913398)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MindPen Premium Monthly | $4.99 | per month |
| MindPen Premium Yearly | $19.99 | per year |
| MindPen Premium Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Structree free?

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

### Is MindPen free?

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

### Do Structree or MindPen have ads?

Structree shows ads; MindPen does not.

### Which is updated more often, Structree or MindPen?

Structree ships an update every 5 days, and MindPen every 6 days. Most recently, Structree was updated on October 8, 2026 and MindPen on October 16, 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.*