# Pieces vs Thread Sort 3D

The clearest difference is rating: Thread Sort 3D at 4.7 against Pieces's 2.8. Pieces's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support 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 holds the better App Store score, 4.7 against 2.8. That said, the two scores are not equally well evidenced: Pieces has 15 ratings behind it against 3, so its average is the more settled of the two.

Pieces ships an update every 4 days, Thread Sort 3D weekly. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Pieces | Thread Sort 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (15 ratings)](https://appshunter.io/ios/app/pieces-brain-games/id1440566986/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/thread-sort-3d-screw-puzzle/id6747078887/reviews)** |
| Number of ratings | **15** | 3 |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | **Free** | Ad-supported |
| Size | 76 MB | 379 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lisfee, Inc.](https://appshunter.io/developer/1146331015) | [巧莲 李](https://appshunter.io/developer/1659765811) |

## What reviewers say

### Pieces

[App page](https://appshunter.io/ios/app/pieces-brain-games/id1440566986)

A simple yet challenging puzzle game designed to boost cognitive skills. Players race against the clock to strategically place pieces, aiming to move as many as possible within 30 seconds to earn rewards.

**Highlights:** Simple one-finger control, Fast-paced gameplay, Brain training challenges, Score-based rewards, Free to play

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Pieces free?

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

### Is Thread Sort 3D free?

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

### Which has better reviews, Pieces or Thread Sort 3D?

Thread Sort 3D is rated higher. Pieces averages 2.8 out of 5 from 15 ratings, while Thread Sort 3D averages 4.7 from 3 ratings.

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

Thread Sort 3D shows ads; Pieces does not.

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

Pieces ships an update every 4 days, and Thread Sort 3D weekly. Most recently, Pieces was updated on October 22, 2026 and Thread Sort 3D on October 25, 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.*