# Vocab Book vs StackAHabit

The clearest difference is device support: StackAHabit at 2 against Vocab Book's —. StackAHabit also leads on iOS requirement (15.1 vs 17.0). On price 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 | Vocab Book | StackAHabit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 weeks |
| Size | 1 MB | 51 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | — | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Oliver Brehm](https://appshunter.io/developer/837610350) | [Martin Penev](https://appshunter.io/developer/1891904800) |

## What reviewers say

### Vocab Book

[App page](https://appshunter.io/ios/app/vocab-book/id837610347)

**In-app purchases:** none


### StackAHabit

[App page](https://appshunter.io/ios/app/stackahabit-habit-stacking/id6761876110)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vocab Book free?

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

### Is StackAHabit free?

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

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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.*