# Pre vs NumAndShape

The clearest difference is ads: Pre at none against NumAndShape's shown. NumAndShape's advantage is update cadence (every 2 months vs every 31 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Pre sells 1 in-app purchase, starting at $4.99 per month and NumAndShape sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Pre ships an update every 31 months, NumAndShape every 2 months. The most recent releases landed on September 15, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Pre | NumAndShape |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 31 months | **Every 2 months** |
| Size | 296 MB | 5 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Math Galaxy](https://appshunter.io/developer/500490521) | [ken morobayashi](https://appshunter.io/developer/954811891) |

## What reviewers say

### Pre

[App page](https://appshunter.io/ios/app/pre-algebra-fundamentals/id551027794)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PreAlgebra - Math Galaxy | $4.99 | per month |


### 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 |


## Frequently asked questions

### Is Pre free?

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

### Is NumAndShape free?

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

### Do Pre or NumAndShape have ads?

NumAndShape shows ads; Pre does not.

### Which is updated more often, Pre or NumAndShape?

Pre ships an update every 31 months, and NumAndShape every 2 months. Most recently, Pre was updated on September 15, 2026 and NumAndShape on September 21, 2026.

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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.*