# Random generate vs CalcStak

The clearest difference is in-app purchases: Random generate at none against CalcStak's 1. Random generate also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. CalcStak sells 1 one-off in-app purchase. Random generate asks for nothing beyond the download.

## The numbers

| Metric | Random generate | CalcStak |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 46 months | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Romanov](https://appshunter.io/developer/1459928735) | [JOEL ANDREW ROSINBUM](https://appshunter.io/developer/1896305700) |

## What reviewers say

### Random generate

[App page](https://appshunter.io/ios/app/random-generate/id1459928736)

**Features:** macOS Compatibility

**In-app purchases:** none


### CalcStak

[App page](https://appshunter.io/ios/app/calcstak/id6766592809)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scientific Functions | $2.99 | one-time |


## Frequently asked questions

### Is Random generate free?

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

### Is CalcStak free?

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

### Do Random generate or CalcStak have ads?

Neither Random generate nor CalcStak 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.*