# ABD Calculator vs Fall Check

The clearest difference is in-app purchases: ABD Calculator at none against Fall Check's 1. Fall Check's advantage is iOS requirement (13.0 vs 17.1). On price, ads and device support there is nothing between them.

Both are free to download. Fall Check sells 1 one-off in-app purchase. ABD Calculator asks for nothing beyond the download.

## The numbers

| Metric | ABD Calculator | Fall Check |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 2 MB | 33 MB |
| Requires iOS | 17.1 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Miller](https://appshunter.io/developer/1739007574) | [Stefanus van de Wetering](https://appshunter.io/developer/1883002799) |

## What reviewers say

### ABD Calculator

[App page](https://appshunter.io/ios/app/abd-calculator/id6480434613)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fall Check

[App page](https://appshunter.io/ios/app/fall-check-pipe-slope-tool/id6780606564)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fall Check Pro | $1.99 | one-time |


## Frequently asked questions

### Is ABD Calculator free?

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

### Is Fall Check free?

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

### Do ABD Calculator or Fall Check have ads?

Neither ABD Calculator nor Fall Check 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.*