# Sort Stack vs Color Sort 3D

The clearest difference is ads: Sort Stack at none against Color Sort 3D's shown. Sort Stack also leads on update cadence (monthly vs every 6 months) and iOS requirement (10.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Sort Stack sells 6 one-off in-app purchases and Color Sort 3D sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Sort Stack ships an update monthly, Color Sort 3D every 6 months. The most recent releases landed on August 11, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Sort Stack | Color Sort 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (516 ratings)](https://appshunter.io/ios/app/sort-stack/id1544010456/reviews)** | — |
| Number of ratings | **516** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 115 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vnstart LLC](https://appshunter.io/developer/1467854570) | [Calm Game Studio](https://appshunter.io/developer/1650561947) |

## What reviewers say

### Sort Stack

[App page](https://appshunter.io/ios/app/sort-stack/id1544010456)

Engage your mind with a colorful ring stacking puzzle game. Strategically move rings to sort them by color, with over 2000 puzzles and unlimited gameplay. Enjoy this free, offline challenge that's easy to learn but difficult to master.

**Highlights:** Ring classification puzzles, Sort rings by color, Move one ring at a time, 2000+ puzzles, Unlimited gameplay, Offline play

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +50 Undo | $0.99 | one-time |
| +120 Undo | $1.99 | one-time |
| Remove ads | $2.99 | one-time |
| +250 Undo | $2.99 | one-time |
| Unlimited Undo | $5.99 | one-time |
| Unlock All | $5.99 | one-time |


### Color Sort 3D

[App page](https://appshunter.io/ios/app/color-sort-3d-calm-sorting/id1672841617)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 coins | $0.99 | one-time |
| 200 coins | $1.99 | one-time |
| 500 coins | $4.99 | one-time |
| Remove Ads | $5.99 | one-time |
| 800 coins | $7.99 | one-time |
| 1300 coins | $12.99 | one-time |
| 4000 coins | $39.99 | one-time |
| 6000 coins | $59.99 | one-time |
| 8000 coins | $79.99 | one-time |
| 10000 coins | $99.99 | one-time |


## Frequently asked questions

### Is Sort Stack free?

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

### Is Color Sort 3D free?

Color Sort 3D is free to download, with in-app purchases available.

### Do Sort Stack or Color Sort 3D have ads?

Color Sort 3D shows ads; Sort Stack does not.

### Which is updated more often, Sort Stack or Color Sort 3D?

Sort Stack ships an update monthly, and Color Sort 3D every 6 months. Most recently, Sort Stack was updated on August 11, 2026 and Color Sort 3D on September 20, 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.*