# Go ABA Materials vs Problem Size

The clearest difference is in-app purchases: Problem Size at none against Go ABA Materials's 1. Go ABA Materials's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Go ABA Materials sells 1 in-app purchase, starting at $9.99 per month. Problem Size asks for nothing beyond the download.

## The numbers

| Metric | Go ABA Materials | Problem Size |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 60 MB | 394 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Big Search Space LLC](https://appshunter.io/developer/6793148619) | [Sherry Chen](https://appshunter.io/developer/6793290593) |

## What reviewers say

### Go ABA Materials

[App page](https://appshunter.io/ios/app/go-aba-materials/id6793148617)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Go ABA Materials Pro | $9.99 | per month |


### Problem Size

[App page](https://appshunter.io/ios/app/problem-size/id6793290591)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Go ABA Materials free?

Go ABA Materials is free to download, with in-app purchases available.

### Is Problem Size free?

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

### Do Go ABA Materials or Problem Size have ads?

Neither Go ABA Materials nor Problem Size 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.*