Reader++ vs Linear Algebra Visualizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Reader++
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Reader++ helps you understand books, papers, and manuals as you read. Select a word or passage for an AI explanation without leaving the page. Ask questions about a PDF or your whole library for free. Get answers with citations pointing to the exact lines in your documents. Explore related ideas, ask follow-up questions, or test yourself with quizzes. Save explanations and summaries to revisit later, and follow your trail back to where you started. Keep your PDFs organized with folders and bookmarks. Your files stay on your device, with only the text needed for AI features sent for processing. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Linear Algebra Visualizer
This app helps you understand linear algebra by visualizing matrix transformations. It shows the step-by-step math behind transformations, allowing you to build visual intuition and see how matrices work.
- Visualize matrix transformations
- Understand step-by-step math
- Build visual intuition
- See effect of TRS order
- Explore eigenvectors and eigenvalues
- Manipulate transformations
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Ever wondered what a matrix is really doing? Whether you're learning it yourself or teaching students who are stuck, this app lets you visualise and manipulate matrix transformations, so you can finally see how and why they work. WHY IT CLICKS Most apps show you the answer. This one shows you why. The columns of a matrix are just where the basis vectors î and ĵ land. Column one is red. Column two is green. Follow those colors from your input, through the transformed vectors, into the step-by-step math. One number, traced all the way to its effect. With Linear Algebra Visualizer you: - Can finally build the visual intuition of linear algebra - Understand the math behind each transformation - Visually see why TRS order matters - Understand the effect of adding multiple matrices and translations - Watch eigenvectors and eigenvalues come alive BUILT FOR - Students surviving their first linear algebra course - Graphics programmers who want intuition, not just formulas - Teachers who need a live demo that lands - Anyone who's stared at a matrix and thought "but why does this work?" - Visual thinkers who've struggled to picture it all in their head Stop memorizing matrices. Start seeing them. Download Linear Algebra Vizualiser: Rotate, Scale, Shear, Reflect, Translate and learn to understand transformations visually. Ever wondered what a matrix is really doing? Whether you're learning it yourself or teaching students who are stuck, this app lets you visualise and manipulate matrix transformations, so you can finally see how and why they work. WHY IT CLICKS Most apps show you the answer. This one shows you why. The columns of a matrix are just where the basis vectors î and ĵ land. Column one is red. Column two is green. Follow those colours from your input, through the transformed vectors, into the step-by-step math. One number, traced all the way to its effect. With Linear Algebra Visualiser you: - Can finally build the visual intuition of linear algebra - Understand the math behind each transformation - Visually see why TRS order matters - Understand the effect of adding multiple matrices and translations - Watch eigenvectors and eigenvalues come alive BUILT FOR - Students surviving their first linear algebra course - Graphics programmers who want intuition, not just formulas - Teachers who need a live demo that lands - Anyone who's stared at a matrix and thought "but why does this work?" - Visual thinkers who've struggled to picture it all in their head Stop memorising matrices. Start seeing them. Download Linear Algebra Visualiser: Rotate, Scale, Shear, Reflect, Translate and learn to understand transformations visually. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Verdict
Reader++ and Linear Algebra Visualizer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Reader++ sells 4 in-app purchases, starting at $4.99 per month and Linear Algebra Visualizer sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Reader++ ships an update fortnightly, Linear Algebra Visualizer every 2 weeks. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.
| Parameter | Reader++ | Linear Algebra Visualizer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 18.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 14 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Mahamad Kanoute | Niclas Jeppsson |
In-app purchases
Reader++
- Plus — Monthly$4.991 Month
- Pro Monthly$14.991 Month
- Plus — Yearly$39.991 Year
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- Pro Yearly$119.991 Year
Linear Algebra Visualizer
- Pro7 Days trial$4.991 Month
- Pro7 Days trial$34.991 Year
- Pro$99.99
Questions
Is Reader++ free?
Is Linear Algebra Visualizer free?
Do Reader++ or Linear Algebra Visualizer have ads?
Which is updated more often, Reader++ or Linear Algebra Visualizer?
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