# InfiniteBrainDrill vs FlipWord

The clearest difference is device support: InfiniteBrainDrill at 3 against FlipWord's 1. InfiniteBrainDrill also leads on iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases 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 | InfiniteBrainDrill | FlipWord |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Size | 165 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Naoya Itoi](https://appshunter.io/developer/1723494033) | [KAITO OKADA](https://appshunter.io/developer/1896654558) |

## What reviewers say

### InfiniteBrainDrill

[App page](https://appshunter.io/ios/app/infinitebraindrill-math-game/id6769431555)

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

**In-app purchases:** none


### FlipWord

[App page](https://appshunter.io/ios/app/flipword/id6786475824)

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

**In-app purchases:** none


## Frequently asked questions

### Is InfiniteBrainDrill free?

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

### Is FlipWord free?

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

### Do InfiniteBrainDrill or FlipWord have ads?

Both InfiniteBrainDrill and FlipWord show 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.*