# NumAndShape vs Facterz

The clearest difference is in-app purchases: Facterz at none against NumAndShape's 6. Facterz also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. NumAndShape sells 6 one-off in-app purchases. Facterz asks for nothing beyond the download.

## The numbers

| Metric | NumAndShape | Facterz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Size | 5 MB | 1 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ken morobayashi](https://appshunter.io/developer/954811891) | [Stuart Zussman](https://appshunter.io/developer/1718584392) |

## What reviewers say

### NumAndShape

[App page](https://appshunter.io/ios/app/numandshape/id6468994873)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| prime number | $0.49 | one-time |
| power | $0.49 | one-time |
| per hour | $0.49 | one-time |
| binary number | $0.49 | one-time |
| sin cos tan | $0.49 | one-time |
| NumAndShape Unlimited | $1.99 | one-time |


### Facterz

[App page](https://appshunter.io/ios/app/facterz/id6473190275)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NumAndShape free?

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

### Is Facterz free?

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

### Do NumAndShape or Facterz have ads?

NumAndShape shows ads; Facterz 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.*