# Irrationals vs Memorize Numbers Challenge

The clearest difference is rating: Irrationals at 5.0 against Memorize Numbers Challenge's 2.3. Irrationals also leads on in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. Memorize Numbers Challenge sells 2 one-off in-app purchases. Irrationals asks for nothing beyond the download.

Irrationals holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 4 and 4 respectively.

Irrationals ships an update daily, Memorize Numbers Challenge every 14 months. The most recent releases landed on June 4, 2026 and July 18, 2026 respectively.

## The numbers

| Metric | Irrationals | Memorize Numbers Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/irrationals/id1499298975/reviews)** | [2.3 (4 ratings)](https://appshunter.io/ios/app/memorize-numbers-challenge/id1639869844/reviews) |
| Number of ratings | 4 | 4 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 14 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 54 MB | 24 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Saeed Rahmatolahi](https://appshunter.io/developer/1490214852) | [Oguzhan Selcuk Bulbul](https://appshunter.io/developer/1605468143) |

## What reviewers say

### Irrationals

[App page](https://appshunter.io/ios/app/irrationals/id1499298975)

Challenge your math skills by estimating irrational numbers using guided formulas. Earn certificates for your achievements and share them with friends.

**Highlights:** Estimate irrational numbers, Guided math formulas, Earn certificates, Share achievements

**Features:** macOS Compatibility

**In-app purchases:** none


### Memorize Numbers Challenge

[App page](https://appshunter.io/ios/app/memorize-numbers-challenge/id1639869844)

Test your memory by memorizing random numbers shown for a limited time. As you succeed, the numbers get longer and more challenging. Compete with friends and exercise your brain with this engaging memory game.

**Highlights:** Memorize random numbers, Increasingly difficult levels, Timed memorization (3 seconds), Type numbers correctly, Challenge friends, Brain exercise

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 Coins | $3.99 | one-time |
| 3000 Coins | $9.99 | one-time |


## Frequently asked questions

### Is Irrationals free?

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

### Is Memorize Numbers Challenge free?

Memorize Numbers Challenge is free to download, with in-app purchases available.

### Which has better reviews, Irrationals or Memorize Numbers Challenge?

Irrationals is rated higher. Irrationals averages 5.0 out of 5 from 4 ratings, while Memorize Numbers Challenge averages 2.3 from 4 ratings.

### Do Irrationals or Memorize Numbers Challenge have ads?

Memorize Numbers Challenge shows ads; Irrationals does not.

### Which is updated more often, Irrationals or Memorize Numbers Challenge?

Irrationals ships an update daily, and Memorize Numbers Challenge every 14 months. Most recently, Irrationals was updated on June 4, 2026 and Memorize Numbers Challenge on July 18, 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.*