# TetraStack4 vs BlockDropPop

The clearest difference is iOS requirement: BlockDropPop at 16.6 against TetraStack4's 26.2. On price, ads, 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.

## The numbers

| Metric | TetraStack4 | BlockDropPop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 4 MB | 22 MB |
| Requires iOS | 26.2 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sungil Kim](https://appshunter.io/developer/1865656448) | [Phu Pham Cong](https://appshunter.io/developer/1880983525) |

## What reviewers say

### TetraStack4

[App page](https://appshunter.io/ios/app/tetrastack4/id6757261238)

**Features:** macOS Compatibility

**In-app purchases:** none


### BlockDropPop

[App page](https://appshunter.io/ios/app/blockdroppop/id6761977874)

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

**In-app purchases:** none


## Frequently asked questions

### Is TetraStack4 free?

TetraStack4 is free to download, with no in-app purchases.

### Is BlockDropPop free?

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

### Do TetraStack4 or BlockDropPop have ads?

Neither TetraStack4 nor BlockDropPop shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*