# RotaStone vs Stack and Merge

The clearest difference is update cadence: Stack and Merge at every 2 days against RotaStone's every 2 months. 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.

RotaStone ships an update every 2 months, Stack and Merge every 2 days. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | RotaStone | Stack and Merge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 60 MB | 70 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [radiuthree Co., Ltd](https://appshunter.io/developer/1158448737) | [Berat Oguz](https://appshunter.io/developer/1124816969) |

## What reviewers say

### RotaStone

[App page](https://appshunter.io/ios/app/rotastone/id1619250280)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stack and Merge

[App page](https://appshunter.io/ios/app/stack-and-merge/id6444185144)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RotaStone free?

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

### Is Stack and Merge free?

Stack and Merge is free to download, with no in-app purchases.

### Do RotaStone or Stack and Merge have ads?

Both RotaStone and Stack and Merge show ads.

### Which is updated more often, RotaStone or Stack and Merge?

RotaStone ships an update every 2 months, and Stack and Merge every 2 days. Most recently, RotaStone was updated on October 11, 2026 and Stack and Merge on October 8, 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.*