# MnemoStack vs casispin

The clearest difference is in-app purchases: casispin at none against MnemoStack's 3. casispin also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.0). On price and ads there is nothing between them.

Both are free to download. MnemoStack sells 3 in-app purchases, starting at $3.99 per month. casispin asks for nothing beyond the download.

## The numbers

| Metric | MnemoStack | casispin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 84 MB | 28 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Vincent Launay](https://appshunter.io/developer/1198218316) | [IngStaff GmbH](https://appshunter.io/developer/1476701737) |

## What reviewers say

### MnemoStack

[App page](https://appshunter.io/ios/app/mnemostack/id6755091634)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Xtremagic Pass | $3.99 | per month |
| Xtremagic Pass | $22.99 | per year |
| Full Access (One-Time Purchase) | $7.99 | one-time |


### casispin

[App page](https://appshunter.io/ios/app/casispin/id6757398029)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MnemoStack free?

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

### Is casispin free?

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

### Do MnemoStack or casispin have ads?

Neither MnemoStack nor casispin shows ads.

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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.*