# Euler’s Number Memory Trainer vs Mental Math

The clearest difference is rating: Mental Math at 3.9 against Euler’s Number Memory Trainer's 2.3. Mental Math also leads on update cadence (weekly vs monthly) and ratings volume (15 vs 3). Euler’s Number Memory Trainer's advantage is in-app purchases (none vs 2) and iOS requirement (11.2 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Mental Math sells 2 in-app purchases, starting at $6.99 per month. Euler’s Number Memory Trainer asks for nothing beyond the download.

Mental Math holds the better App Store score, 3.9 against 2.3. That said, the two scores are not equally well evidenced: Mental Math has 15 ratings behind it against 3, so its average is the more settled of the two.

Euler’s Number Memory Trainer ships an update monthly, Mental Math weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Euler’s Number Memory Trainer | Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/eulers-number-memory-trainer/id1406581737/reviews) | **[3.9 (15 ratings)](https://appshunter.io/ios/app/mental-math/id6741392626/reviews)** |
| Number of ratings | 3 | **15** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 12 MB | 27 MB |
| Requires iOS | **11.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Turk](https://appshunter.io/developer/1480143611) | [Habi](https://appshunter.io/developer/1768088004) |

## What reviewers say

### Euler’s Number Memory Trainer

[App page](https://appshunter.io/ios/app/eulers-number-memory-trainer/id1406581737)

Test your memory by memorizing digits of Euler's number. This app provides a simple and helpful interface to challenge your recall of this important mathematical constant.

**Highlights:** Memory skill testing, Memorize digits of Euler's number, User-friendly interface, Simple and helpful design

**Features:** macOS Compatibility

**In-app purchases:** none


### Mental Math

[App page](https://appshunter.io/ios/app/mental-math/id6741392626)

This app makes practicing math skills enjoyable for all ages through habit-forming exercises. It offers various math topics, custom equation creation, and multiple input methods. Personalized feedback and progress tracking help build confidence and foster a love for math.

**Highlights:** Addition, subtraction, fractions, multiplication practice, Custom equation creation, Handwriting input and audio guidance, Personalized feedback and progress tracking, Playful characters and rewards system, Family learning options

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mental Math | $6.99 | per month |
| Mental Math | $49.99 | per year |


## Frequently asked questions

### Is Euler’s Number Memory Trainer free?

Euler’s Number Memory Trainer is free to download, with no in-app purchases.

### Is Mental Math free?

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

### Which has better reviews, Euler’s Number Memory Trainer or Mental Math?

Mental Math is rated higher. Euler’s Number Memory Trainer averages 2.3 out of 5 from 3 ratings, while Mental Math averages 3.9 from 15 ratings.

### Do Euler’s Number Memory Trainer or Mental Math have ads?

Neither Euler’s Number Memory Trainer nor Mental Math shows ads.

### Which is updated more often, Euler’s Number Memory Trainer or Mental Math?

Euler’s Number Memory Trainer ships an update monthly, and Mental Math weekly. Most recently, Euler’s Number Memory Trainer was updated on October 24, 2026 and Mental Math on October 24, 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.*