# Thread Mark vs Task Biyori

The clearest difference is update cadence: Task Biyori at every 3 days against Thread Mark's fortnightly. Thread Mark's advantage is iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Thread Mark sells 2 one-off in-app purchases and Task Biyori sells 1 in-app purchase, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

Thread Mark ships an update fortnightly, Task Biyori every 3 days. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Thread Mark | Task Biyori |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 49 MB | 14 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Koya Kurauchi](https://appshunter.io/developer/1887146796) | [Yuki Takeuchi](https://appshunter.io/developer/1587906985) |

## What reviewers say

### 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 |


### Task Biyori

[App page](https://appshunter.io/ios/app/task-biyori-to-do-planner/id6784294886)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $0.49 | per month |


## Frequently asked questions

### Is Thread Mark free?

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

### Is Task Biyori free?

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

### Do Thread Mark or Task Biyori have ads?

Both Thread Mark and Task Biyori show ads.

### Which is updated more often, Thread Mark or Task Biyori?

Thread Mark ships an update fortnightly, and Task Biyori every 3 days. Most recently, Thread Mark was updated on October 3, 2026 and Task Biyori on October 14, 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.*