# Duckling Sort vs PopBlocks3D

The clearest difference is in-app purchases: PopBlocks3D at none against Duckling Sort's 5. Duckling Sort's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Duckling Sort sells 5 in-app purchases, starting at $2.99 per month. PopBlocks3D asks for nothing beyond the download.

Duckling Sort ships an update every 2 days, PopBlocks3D daily. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Duckling Sort | PopBlocks3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 days | **Daily** |
| Size | 72 MB | 120 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thunyathep Santhanavanich](https://appshunter.io/developer/6811509101) | [Richard Folea](https://appshunter.io/developer/6800581491) |

## What reviewers say

### Duckling Sort

[App page](https://appshunter.io/ios/app/duckling-sort/id6811509098)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Duck Club VIP | $2.99 | per month |
| Coin Pouch | $0.99 | one-time |
| Coin Bag | $2.99 | one-time |
| Coin Bucket | $4.99 | one-time |
| Treasure Chest | $9.99 | one-time |


### PopBlocks3D

[App page](https://appshunter.io/ios/app/popblocks3d-block-puzzle/id6817695198)

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

**In-app purchases:** none


## Frequently asked questions

### Is Duckling Sort free?

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

### Is PopBlocks3D free?

PopBlocks3D is free to download, with no in-app purchases.

### Do Duckling Sort or PopBlocks3D have ads?

PopBlocks3D shows ads; Duckling Sort does not.

### Which is updated more often, Duckling Sort or PopBlocks3D?

Duckling Sort ships an update every 2 days, and PopBlocks3D daily. Most recently, Duckling Sort was updated on November 6, 2026 and PopBlocks3D on October 31, 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.*