# Structree vs Thread Mark

The clearest difference is update cadence: Structree at every 5 days against Thread Mark's fortnightly. On price, ads, 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 Thread Mark sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Structree ships an update every 5 days, Thread Mark fortnightly. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Structree | Thread Mark |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 28 MB | 49 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuichi Sato](https://appshunter.io/developer/1894470170) | [Koya Kurauchi](https://appshunter.io/developer/1887146796) |

## 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 |


### Thread Mark

[App page](https://appshunter.io/ios/app/thread-mark-markdown-notes/id6775019899)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy the Developer a Coffee | $2.99 | one-time |
| ThreadMark Pro | $9.99 | one-time |


## Frequently asked questions

### Is Structree free?

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

### Is Thread Mark free?

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

### Do Structree or Thread Mark have ads?

Both Structree and Thread Mark show ads.

### Which is updated more often, Structree or Thread Mark?

Structree ships an update every 5 days, and Thread Mark fortnightly. Most recently, Structree was updated on September 21, 2026 and Thread Mark on September 19, 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.*