# Thread Sort 3D vs Memorandum

The clearest difference is update cadence: Thread Sort 3D at weekly against Memorandum's every 3 months. Thread Sort 3D also leads on device support (3 vs 1) and iOS requirement (12.0 vs 26.1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Thread Sort 3D ships an update weekly, Memorandum every 3 months. Both last shipped on November 5, 2026.

## The numbers

| Metric | Thread Sort 3D | Memorandum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/thread-sort-3d-screw-puzzle/id6747078887/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Ad-supported | — |
| Size | 379 MB | 6 MB |
| Requires iOS | **12.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [巧莲 李](https://appshunter.io/developer/1659765811) | [HORACIO GARZA](https://appshunter.io/developer/1859810363) |

## What reviewers say

### Thread Sort 3D

[App page](https://appshunter.io/ios/app/thread-sort-3d-screw-puzzle/id6747078887)

Untangle colorful threads from fluffy objects in this relaxing 3D puzzle game. Simple tap controls make it easy to transform chaos into order, offering a stress-free and rewarding experience perfect for unwinding.

**Highlights:** Untangle colorful threads, Calming 3D puzzle gameplay, Simple tap controls, Mindful and stress-free experience, Rewarding progress

**Features:** macOS Compatibility

**In-app purchases:** none


### Memorandum

[App page](https://appshunter.io/ios/app/memorandum-memorize-and-win/id6756941530)

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

**In-app purchases:** none


## Frequently asked questions

### Is Thread Sort 3D free?

Thread Sort 3D is free to download, with no in-app purchases.

### Is Memorandum free?

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

### Do Thread Sort 3D or Memorandum have ads?

Both Thread Sort 3D and Memorandum show ads.

### Which is updated more often, Thread Sort 3D or Memorandum?

Thread Sort 3D ships an update weekly, and Memorandum every 3 months. Most recently, Thread Sort 3D was updated on November 5, 2026 and Memorandum on November 5, 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.*