# Combinate vs RotaStone

The clearest difference is in-app purchases: RotaStone at none against Combinate's 1. RotaStone also leads on update cadence (every 2 months vs every 6 months) and iOS requirement (12.0 vs 15.6). Combinate's advantage is ads (none vs shown). On price and device support there is nothing between them.

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

Combinate ships an update every 6 months, RotaStone every 2 months. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Combinate | RotaStone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/combinate/id1482519964/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 60 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PulseFix LLC](https://appshunter.io/developer/1073314168) | [radiuthree Co., Ltd](https://appshunter.io/developer/1158448737) |

## What reviewers say

### Combinate

[App page](https://appshunter.io/ios/app/combinate/id1482519964)

A challenging number puzzle game where players merge matching numbers in a circle to create increasingly larger numbers. Utilize slingshot mechanics to aim pieces at targets and combine them effectively.

**Highlights:** Merge matching numbers, Build increasing numbers, Slingshot pieces onto targets, Circular puzzle gameplay, Challenging number mechanics

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Combinate - Full Version | $1.99 | one-time |


### RotaStone

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Combinate free?

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

### Is RotaStone free?

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

### Do Combinate or RotaStone have ads?

RotaStone shows ads; Combinate does not.

### Which is updated more often, Combinate or RotaStone?

Combinate ships an update every 6 months, and RotaStone every 2 months. Most recently, Combinate was updated on October 1, 2026 and RotaStone on October 11, 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.*