# NumMemorize vs NumAndShape

The clearest difference is in-app purchases: NumMemorize at none against NumAndShape's 6. NumMemorize also leads on ads (none vs shown) and iOS requirement (9.0 vs 16.6). On price, update cadence and device support there is nothing between them.

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

NumMemorize ships an update every 4 months, NumAndShape every 2 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | NumMemorize | NumAndShape |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nummemorize/id310151986/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 3 MB | 5 MB |
| Requires iOS | **9.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mahboud Zabetian](https://appshunter.io/developer/310151989) | [ken morobayashi](https://appshunter.io/developer/954811891) |

## What reviewers say

### NumMemorize

[App page](https://appshunter.io/ios/app/nummemorize/id310151986)

This app helps users memorize digits of mathematical constants like pi and e through quizzes. It also allows users to input and memorize their own custom numbers, and offers voice input for convenience.

**Highlights:** Memorize digits of pi, e, and other constants, Quiz yourself on number recall, Input and memorize custom numbers, Voice input for number entry, Practice for math and science students

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 NumMemorize free?

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

### Is NumAndShape free?

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

### Do NumMemorize or NumAndShape have ads?

NumAndShape shows ads; NumMemorize does not.

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

NumMemorize ships an update every 4 months, and NumAndShape every 2 months. Most recently, NumMemorize was updated on October 24, 2026 and NumAndShape on October 8, 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.*