# VO Lab vs Cosmic Number Lines

The clearest difference is price: Cosmic Number Lines at Free against VO Lab's $4.99. VO Lab's advantage is iOS requirement (7.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Cosmic Number Lines is free to download; VO Lab costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | VO Lab | Cosmic Number Lines |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/vo-lab/id1227307699/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Paid | — |
| Size | 40 MB | 32 MB |
| Requires iOS | **7.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Phia Damsma](https://appshunter.io/developer/1363442979) | [American Printing House for the Blind (APH)](https://appshunter.io/developer/704570515) |

## What reviewers say

### VO Lab

[App page](https://appshunter.io/ios/app/vo-lab/id1227307699)

An educational iPad game designed to teach blind or low-vision users the basics of VoiceOver gestures and concepts. It offers a safe, interactive, and gamified learning environment with clear audio instructions and feedback.

**Highlights:** Learn VoiceOver basics, Interactive gesture practice, Audio-based learning, Gamified experience, Risk-free exploration, Designed for iPad

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

**In-app purchases:** none


### Cosmic Number Lines

[App page](https://appshunter.io/ios/app/cosmic-number-lines/id1620587282)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VO Lab free?

VO Lab costs $4.99, with no in-app purchases.

### Is Cosmic Number Lines free?

Cosmic Number Lines is free to download, with no in-app purchases.

### Do VO Lab or Cosmic Number Lines have ads?

Neither VO Lab nor Cosmic Number Lines 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.*