# NumeroNinjaDS vs Comp Study

NumeroNinjaDS and Comp Study are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | NumeroNinjaDS | Comp Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 3 MB | 1 MB |
| Requires iOS | **15** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Klappstein Jana](https://appshunter.io/developer/1844630216) | [Ishika Baluni](https://appshunter.io/developer/6808254456) |

## What reviewers say

### NumeroNinjaDS

[App page](https://appshunter.io/ios/app/numeroninjads/id6753717098)

**Features:** macOS Compatibility

**In-app purchases:** none


### Comp Study

[App page](https://appshunter.io/ios/app/comp-studyelement/id6808254454)

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

**In-app purchases:** none


## Frequently asked questions

### Is NumeroNinjaDS free?

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

### Is Comp Study free?

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

### Do NumeroNinjaDS or Comp Study have ads?

Neither NumeroNinjaDS nor Comp Study 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.*