# Option Base vs Kran & Stapler Schein

The clearest difference is in-app purchases: Option Base at none against Kran & Stapler Schein's 9. Kran & Stapler Schein's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Kran & Stapler Schein sells 9 in-app purchases, starting at $6.99 per 7 days. Option Base asks for nothing beyond the download.

## The numbers

| Metric | Option Base | Kran & Stapler Schein |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 6 days |
| Size | 24 MB | 23 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Iaroslav Mironov](https://appshunter.io/developer/640082786) | [fly sky pty ltd](https://appshunter.io/developer/1838696534) |

## What reviewers say

### Option Base

[App page](https://appshunter.io/ios/app/option-base-risk-calculator/id6499103764)

**Features:** macOS Compatibility

**In-app purchases:** none


### Kran & Stapler Schein

[App page](https://appshunter.io/ios/app/kran-and-stapler-schein/id6785648848)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kranschein Prüfung 2026 Full A | $6.99 | per 7 days |
| Kran / Hubarbeitsbühne / Ansch | $6.99 | per 7 days |
| Staplerschein (Gabelstapler / | $6.99 | per 7 days |
| Kranschein Prüfung 2026 Full A | $16.99 | per month |
| Kran / Hubarbeitsbühne / Ansch | $16.99 | per month |
| Staplerschein (Gabelstapler / | $16.99 | per month |
| Kranschein Prüfung 2026 Full A | $39.99 | per 3 months |
| Kran / Hubarbeitsbühne / Ansch | $39.99 | per 3 months |
| Staplerschein (Gabelstapler / | $39.99 | per 3 months |


## Frequently asked questions

### Is Option Base free?

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

### Is Kran & Stapler Schein free?

Kran & Stapler Schein is free to download, with in-app purchases available.

### Do Option Base or Kran & Stapler Schein have ads?

Option Base shows ads; Kran & Stapler Schein does not.

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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.*