e vs Matrix for Beginners
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
e
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.
- Convert length to time
- Convert time to length
- Geometrized units (c=1)
- Avoids scientific notation
- Supports various input units
- Educational and entertaining
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Have you thought about how old you are - in meters? Or how tall you are - in seconds? Or how many miles it is until your next birthday? Let's think out of the box, relativistically. While spacetime intervals are constant, length and time can be converted to each other. This calculator makes use of geometrized units (where the speed of light is unity) and lets you convert conveniently between length and time. Is this a useful conversion tool in your day-to-day life? Probably not. But maybe it will let you think about the world a little differently. And amuse your friends and family at the same time! For a technical reference, refer to "Gravitation", by Misner, Thorne and Wheeler, 1973, W.H. Freeman and Company, pp. 35-36. To make things more accessible to the average user, we have tried to avoid displaying scientific notation in numbers as much as possible and, instead, make use of more common terms, such as "billions of miles" and "milliseconds". Now upgraded with the ability to choose different lengths and times for input (inches, hours, days, etc.)! keywords: science, physics, space, time, relativity, calculator ---------------- Reviews from around the world: from Fox Knight, US Love this app!! from highschool student, US Good job, there's a lot of potential here. . . from Turbo elf, US Science geek must buy from Letter Warrior, US I love this idea, especially seeing how far it is until tomorrow, or a friend's birthday. from Professor and wife, US A great application that can also be used by students ... really is a wonderful game.
Matrix for Beginners
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.
- 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
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Learn Matrix the Fun Way Master matrix step by step with interactive quizzes and exercises. Whether you are a beginner or brushing up on advanced concepts, this app guides you from the very basics to complex operations. What You Will Learn - Introduction to matrices: order, elements, and types - Basic operations: addition, subtraction, scalar multiplication - Matrix multiplication: feasibility, step-by-step calculation - Transpose and symmetry: rules and properties - Determinants: 2×2, 3×3 (Sarrus), 4×4 (Gaussian elimination) - Matrix inverse: concepts, 2×2, and 3×3 inverses Why Use This App - Clear progression through levels - Interactive quizzes to test understanding - Step-by-step hints for tough problems - Designed for students and self-learners Take your linear algebra learning to the next level!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | e | Matrix for Beginners |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 90.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 11 months | Every 4 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.5 — better | 18.5 |
| Further details — not scored | ||
| Size | 4 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Elliptics, Ltd. | Aswian Editri Sutriandi |
Customer experience
e
Matrix for Beginners
In-app purchases
e
No in-app purchases
Matrix for Beginners
- Remove Ads$2.99
Questions
Is e free?
Is Matrix for Beginners free?
Which has better reviews, e or Matrix for Beginners?
Do e or Matrix for Beginners have ads?
Which is updated more often, e or Matrix for Beginners?
Other comparisons
