Comparison

Linear Algebra vs Twixem AI

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Linear Algebra

Features
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Linear Algebra - Matrix Solver is a powerful and easy-to-use tool for calculating matrices, determinants, and vector operations โ€” perfect for students, engineers, and anyone who works with linear algebra in study or professional tasks. The app performs step-by-step calculations with detailed solutions using the correct formulas. You can work with matrices up to 5ร—5 and vectors in 2D or 3D. Each calculator includes a brief theoretical overview to help you understand the concept behind the operation. It also includes a random number generator to instantly create practice problems with random values. Available in 8 languages: English, French, German, Italian, Portuguese, Spanish, Russian, Ukrainian. Whether you're learning, teaching, or solving real-world problems, Linear Algebra app helps you get accurate results quickly and understand the math behind them. The application perform following operations with matrices: โ€ข Matrix addition โ€ข Matrix subtraction โ€ข Matrix scalar multiplication โ€ข Matrix square โ€ข Matrix multiplication โ€ข Matrix transposition Determinant calculations: โ€ข Calculation of the determinant using the Sarrus method โ€ข Calculation of the determinant using the Laplace method Vector operations: โ€ข Vector Length โ€ข Vector coordinates by two points โ€ข Vectors addition โ€ข Vectors subtraction โ€ข Scalar and vector multiplication โ€ข Scalar product of vectors โ€ข Cross product of vectors โ€ข Mixed (scalar) triple product โ€ข Angle between two vectors โ€ข Projection of a vector onto another vector โ€ข Direction cosines โ€ข Collinear vectors โ€ข Orthogonal vectors โ€ข Coplanar vectors โ€ข Area of triangle formed by vectors โ€ข Area of a parallelogram formed by vectors โ€ข Volume of pyramid formed by vectors โ€ข Volume of a parallelepiped formed by vectors Download now and simplify your linear algebra work!

About

Twixem AI

Features
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Your course PDFs are asleep on your phone. Twixem AI wakes them up. Import any document โ€” a lecture, a chapter, your notes โ€” and AI transforms it into everything you need to ace your exam. In your document's language, automatically. GENERATES IN SECONDS - Quizzes: MCQ, True/False, Fill-blank โ€” with explanations - Flashcards with spaced repetition (the Anki method, proven by science) - Smart structured summaries, listenable as a podcast - Open-ended questions graded by AI, with feedback and a model answer A TUTOR WHO KNOWS YOUR COURSE Stuck on a question? Type "I don't understand" and the AI explains it like a teacher โ€” grounded in YOUR document, not generic answers. Ask anything in the Ask Twixem chat. A COACH THAT TARGETS YOUR WEAK SPOTS After each quiz, Twixem identifies the concepts you struggle with and offers a targeted mini-quiz. On the home screen: "Work on Biology today" โ€” calculated from your actual results. MAKE IT STICK UNTIL EXAM DAY Set your exam date: your plan recalculates every day (missing a day breaks nothing), your flashcards return at the optimal moment for your memory, and reminders count down with you: "D-12 โ€” 8 cards are waiting." YOUR DOCUMENT BECOMES A WORKSPACE Imported once, kept forever: find its quizzes, your mistakes, your decks, your summaries, your tutor conversation, and your concept map โ€” all in one place, throughout your preparation. IN 16 LANGUAGES English, French, Spanish, Arabic, Portuguese, German, Turkish, Indonesian, Hindi, Chinese, Japanese, Korean, Russian, Italian, Vietnamese, Swahili โ€” the interface AND generated content. FREE TO START: 3 daily generations + 5 tutor messages. PREMIUM: unlimited everything, timed exam mode, 5-40 questions, open-ended questions graded by AI, 30-day analytics, zero ads. Built by a student who struggled to revise โ€” for everyone who wants to study smarter, not harder. Privacy: your documents stay private, are never used to train AIs, and can be deleted anytime. https://twixem-ai.web.app/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Linear Algebra4 screens
Twixem AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Linear Algebra at none against Twixem AI's 2. Twixem AI's advantage is ads (none vs shown) and update cadence (every 2 days vs every 6 weeks). On price, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Twixem AI sells 2 in-app purchases, starting at $4.99 per month. Linear Algebra asks for nothing beyond the download.

UpkeepUpdate frequency

Linear Algebra ships an update every 6 weeks, Twixem AI every 2 days. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

Scorecard3 real differences ยท 3 level
Linear Algebra versus Twixem AI: the parameters behind the verdict, then further details
ParameterLinear AlgebraTwixem AI
PriceFreeFree
Update frequencyEvery 6 weeksEvery 2 days โ€” better
AdsYesNo โ€” better
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.5 โ€” better
Further details โ€” not scored
Size8 MB91 MB
Age rating4+4+
DeveloperALG Software LabJules Ntimbwa

In-app purchases

None

Linear Algebra

No in-app purchases

2 purchases

Twixem AI

Subscriptions2
  • Twixem Pro Monthly$4.991 Month
  • Twixem Pro Yearly$24.991 Year

Questions

Is Linear Algebra free?
Linear Algebra is free to download, with no in-app purchases.
Is Twixem AI free?
Twixem AI is free to download, with in-app purchases available.
Do Linear Algebra or Twixem AI have ads?
Linear Algebra shows ads; Twixem AI does not.
Which is updated more often, Linear Algebra or Twixem AI?
Linear Algebra ships an update every 6 weeks, and Twixem AI every 2 days. Most recently, Linear Algebra was updated on October 1, 2026 and Twixem AI on October 8, 2026.

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