# Cat® GRADE Assistant vs ABD Calculator

The clearest difference is iOS requirement: Cat® GRADE Assistant at 14.0 against ABD Calculator's 17.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Cat® GRADE Assistant | ABD Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | — |
| Size | 38 MB | 2 MB |
| Requires iOS | **14.0** | 17.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Caterpillar Inc.](https://appshunter.io/developer/571668770) | [Daniel Miller](https://appshunter.io/developer/1739007574) |

## What reviewers say

### Cat® GRADE Assistant

[App page](https://appshunter.io/ios/app/cat-grade-assistant/id1604853064)

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

**In-app purchases:** none


### ABD Calculator

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cat® GRADE Assistant free?

Cat® GRADE Assistant is free to download, with no in-app purchases.

### Is ABD Calculator free?

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

### Do Cat® GRADE Assistant or ABD Calculator have ads?

Neither Cat® GRADE Assistant nor ABD Calculator 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.*