# VOIDcabulary vs ISUD Zero

The clearest difference is price: VOIDcabulary at Free against ISUD Zero's $0.99. VOIDcabulary also leads on iOS requirement (12.0 vs 15.0). ISUD Zero's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

VOIDcabulary is free to download; ISUD Zero costs $0.99 up front. VOIDcabulary sells 3 one-off in-app purchases. ISUD Zero asks for nothing beyond the download.

## The numbers

| Metric | VOIDcabulary | ISUD Zero |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/voidcabulary/id6633442950/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 328 MB | 119 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [Bumblebutt Studios LLC](https://appshunter.io/developer/1762653991) | [Suwitcha Sugthana](https://appshunter.io/developer/372726303) |

## What reviewers say

### VOIDcabulary

[App page](https://appshunter.io/ios/app/voidcabulary/id6633442950)

Engage in a top-down bullet hell shooter that seamlessly integrates Japanese and Korean vocabulary learning. Progress through challenging levels, unlock new content, and expand your language skills effortlessly while enjoying arcade-style gameplay.

**Highlights:** Bullet hell gameplay, Learn Japanese & Korean vocabulary, Unlock spaceships and power-ups, Score based on gameplay and knowledge, Selectable word categories, Top-down shooter mechanics

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $1.99 | one-time |
| Frostmane Spaceship | $2.99 | one-time |
| Netherstorm Galaxy | $4.99 | one-time |


### ISUD Zero

[App page](https://appshunter.io/ios/app/isud-zero/id6765926399)

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

**In-app purchases:** none


## Frequently asked questions

### Is VOIDcabulary free?

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

### Is ISUD Zero free?

ISUD Zero costs $0.99, with no in-app purchases.

### Do VOIDcabulary or ISUD Zero have ads?

VOIDcabulary shows ads; ISUD Zero does not.

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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.*