Matrix Operations vs Probability Distribution
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
Probability Distribution
This app allows users to calculate probabilities and visualize various continuous and discrete probability distributions. It supports a wide range of common distributions and plans to add more in the future.
- Calculate probabilities
- Visualize distributions
- Normal (Gaussian) distribution
- Binomial distribution
- Poisson distribution
- Exponential distribution
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Calculate probabilities and visualize probability distributions. Supported continuous probability distributions: - Normal (Gaussian) - t (Student's t) - Chi-Squared - F - Exponential - Gamma - Beta - Log-normal Supported discrete probability distributions: - Binomial - Poisson - Pascal - Geometric - Hypergeometric and more are coming.
Screenshots
Verdict
The clearest difference is review sentiment: Matrix Operations at 75% against Probability Distribution's 33%. Matrix Operations also leads on rating (4.7 vs 4.5) and monetization model (free with in-app purchases vs paid). Probability Distribution's advantage is ads (none vs shown). On price, ratings volume, update cadence and in-app purchases 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 Probability Distribution sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Matrix Operations holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 19 and 15 respectively. Written reviews point the same way: 75% of Matrix Operations's written reviews are positive against 33% of Probability Distribution's.
Matrix Operations ships an update every 10 days, Probability Distribution every 2 weeks. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.
| Parameter | Matrix Operations | Probability Distribution |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (19 ratings) — better | 4.5 (15 ratings) |
| Positive reviews | 75.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 19 — better | 15 |
| Update frequency | Every 10 days — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.5 — better | 16.0 |
| Further details — not scored | ||
| Size | 89 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Vitalii Solovei | Madiyar Aitbayev |
Customer experience
Matrix Operations
Probability Distribution
In-app purchases
Matrix Operations
- Premium Access$1.99
Probability Distribution
- Unlock All Distributions$2.99
Questions
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Is Probability Distribution free?
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