# RotaStone vs CoreShift

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

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

RotaStone ships an update every 2 months, CoreShift every 3 weeks. Both last shipped on October 11, 2026.

## The numbers

| Metric | RotaStone | CoreShift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 60 MB | 32 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [radiuthree Co., Ltd](https://appshunter.io/developer/1158448737) | [Jozsef Farkas](https://appshunter.io/developer/1891341454) |

## What reviewers say

### RotaStone

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

**Features:** macOS Compatibility

**In-app purchases:** none


### CoreShift

[App page](https://appshunter.io/ios/app/coreshift-abstract-strategy/id6761764965)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CoreShift Pro | $3.99 | one-time |


## Frequently asked questions

### Is RotaStone free?

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

### Is CoreShift free?

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

### Do RotaStone or CoreShift have ads?

RotaStone shows ads; CoreShift does not.

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

RotaStone ships an update every 2 months, and CoreShift every 3 weeks. Most recently, RotaStone was updated on October 11, 2026 and CoreShift 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.*