# RotaStone vs Skyscraper Logic

The clearest difference is in-app purchases: RotaStone at none against Skyscraper Logic's 1. Skyscraper Logic's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Skyscraper Logic sells 1 one-off in-app purchase. RotaStone asks for nothing beyond the download.

RotaStone ships an update every 2 months, Skyscraper Logic every 3 weeks. The most recent releases landed on September 9, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | RotaStone | Skyscraper Logic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 60 MB | 61 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [radiuthree Co., Ltd](https://appshunter.io/developer/1158448737) | [Huy Huynh](https://appshunter.io/developer/1815003126) |

## What reviewers say

### RotaStone

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Skyscraper Logic

[App page](https://appshunter.io/ios/app/skyscraper-logic-modern-grid/id6759394032)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


## Frequently asked questions

### Is RotaStone free?

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

### Is Skyscraper Logic free?

Skyscraper Logic is free to download, with in-app purchases available.

### Do RotaStone or Skyscraper Logic have ads?

Both RotaStone and Skyscraper Logic show ads.

### Which is updated more often, RotaStone or Skyscraper Logic?

RotaStone ships an update every 2 months, and Skyscraper Logic every 3 weeks. Most recently, RotaStone was updated on September 9, 2026 and Skyscraper Logic on September 13, 2026.

---

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