Matrix Operations vs Star
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Matrix Operations
This app is a comprehensive matrix calculator that solves various matrix operations with detailed, step-by-step solutions. It supports numerous methods for solving linear equations, finding determinants, inverses, ranks, and decompositions. The app also offers custom input and the ability to save and edit solutions.
- Solves systems of linear equations
- Calculates matrix determinants and inverses
- Performs QR, LU, and Cholesky decompositions
- Finds eigenvalues and eigenvectors
- Step-by-step solution descriptions
- Custom keyboard for data entry
- Works offline
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Matrix Operations Calculator solves every operation step by step — and lets you pick the method. From a quick determinant to a full singular value decomposition, you get the complete worked solution, not just the answer. Works fully offline. SYSTEMS OF LINEAR EQUATIONS CALCULATOR * Gaussian elimination * Cramer's rule * Gauss-Jordan * Inverse matrix method * Montante (Bareiss algorithm) DETERMINANT CALCULATOR * Decomposition * Reduction to triangular form * Montante (Bareiss algorithm) * Sarrus' rule (3×3 only) INVERSE MATRIX CALCULATOR * Gaussian elimination * Gauss-Jordan * Algebraic complements * Montante (Bareiss algorithm) RANK OF A MATRIX CALCULATOR * Elementary transformations * Bordering minors QR DECOMPOSITION CALCULATOR * Gram–Schmidt * Householder reflections * Givens rotation MORE OPERATIONS * Polar decomposition calculator * Matrix square root calculator * Singular value decomposition (SVD) calculator * Eigenvalues, eigenvectors & eigendecomposition (diagonalization) calculator * Matrix minor, cofactor & adjoint calculator * LU, Schur & Cholesky decomposition calculator * Solving matrix equations calculator * Raising a matrix to a power calculator * Multiplying a matrix by a number calculator * Transposition, addition, subtraction & multiplication calculator FEATURES * Step-by-step solutions for every operation * Custom keyboard for fast data entry * Save and edit your solutions * Works without an internet connection * Results as ordinary or decimal fractions Web version: https://matrix-operations.com
Star
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This app provides conversion between star delta electrical networks. Features * Convert resistor star network to delta network * Convert resistor delta network to star network Pro features * Convert capacitor star network to delta network * Convert capacitor delta network to star network * Convert inductor star network to delta network * Convert inductor delta network to star network * Convert impedance star network to delta network * Convert impedance delta network to star network
Screenshots
Verdict
The clearest difference is ads: Star at none against Matrix Operations's shown. Star also leads on iOS requirement (12.0 vs 15.5). Matrix Operations's advantage is update cadence (every 10 days vs every 27 months). On price, in-app purchases 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 Operations sells 1 one-off in-app purchase and Star sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Matrix Operations ships an update every 10 days, Star every 27 months. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.
| Parameter | Matrix Operations | Star |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (19 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 10 days — better | Every 27 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.5 | 12.0 — better |
| Further details — not scored | ||
| Size | 89 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Vitalii Solovei | Siu Yuen Ho |
In-app purchases
Matrix Operations
- Premium Access$1.99
Star
- Unlock Pro feature$1.99
Questions
Is Matrix Operations free?
Is Star free?
Do Matrix Operations or Star have ads?
Which is updated more often, Matrix Operations or Star?
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