# e vs Matrix for Beginners

The clearest difference is rating: e at 5.0 against Matrix for Beginners's 4.0. e also leads on in-app purchases (none vs 1) and ads (none vs shown). Matrix for Beginners's advantage is update cadence (every 4 months vs every 11 months) and review sentiment (100% vs 90%). On price, ratings volume and device support there is nothing between them.

Both are free to download. Matrix for Beginners sells 1 one-off in-app purchase. e asks for nothing beyond the download.

e holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews complicate that: 90% of e's written reviews are positive against 100% of Matrix for Beginners's, so the app with the better star average is not the one people write more warmly about.

e ships an update every 11 months, Matrix for Beginners every 4 months. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | e | Matrix for Beginners |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e-spacetime-converter/id291317973/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/matrix-for-beginners/id6753865121/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 90.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 16 MB |
| Requires iOS | **15.5** | 18.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Elliptics, Ltd.](https://appshunter.io/developer/289108972) | [Aswian Editri Sutriandi](https://appshunter.io/developer/1791663083) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-spacetime-converter/id291317973)

Explore the universe of spacetime by converting lengths into time and vice versa. This unique calculator uses geometrized units to help you think about the world in new ways and amuse your friends. It's a fun tool for science enthusiasts and students alike.

**Highlights:** Convert length to time, Convert time to length, Geometrized units (c=1), Avoids scientific notation, Supports various input units, Educational and entertaining

**In-app purchases:** none


### Matrix for Beginners

[App page](https://appshunter.io/ios/app/matrix-for-beginners/id6753865121)

Master matrix operations with interactive quizzes and step-by-step guidance. This app covers everything from basic concepts like order and elements to advanced topics such as determinants and inverses. It's designed for students and self-learners to progress at their own pace.

**Highlights:** Step-by-step learning progression, Interactive quizzes, Hints for difficult problems, Covers basic and advanced matrix operations, Introduction to determinants and inverses, Designed for students and self-learners

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is e free?

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

### Is Matrix for Beginners free?

Matrix for Beginners is free to download, with in-app purchases available.

### Which has better reviews, e or Matrix for Beginners?

e is rated higher. e averages 5.0 out of 5 from 1 ratings, while Matrix for Beginners averages 4.0 from 1 ratings.

### Do e or Matrix for Beginners have ads?

Matrix for Beginners shows ads; e does not.

### Which is updated more often, e or Matrix for Beginners?

e ships an update every 11 months, and Matrix for Beginners every 4 months. Most recently, e was updated on October 5, 2026 and Matrix for Beginners 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.*