Comparison

functionCalculator vs Matrix Solver Step by Step

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

Head to head
About

functionCalculator

This app calculates the value of mathematical functions y = f(x) for various types of numbers, including irrational ones. It displays results as exact fractions with square roots and can convert them to decimals. The app also supports calculations involving two different input values, alpha and beta.

Highlights
  • Calculate function values for any number type
  • Display results as exact fractions
  • Convert results to decimal
  • Perform operations on two input values
  • Supports irrational numbers
Features
Read full description

Calculate the value of the mathematical function y = f (x). It is possible to assign to x any integer, rational number, irrational number. For example, you can assign square root 2 to x. It is not necessary to fix it to decimal. The calculation result is output in the form of a fraction using square root. It is exactly the same as math calculations. You can also convert the result to decimal. Calculate the values ​​of f (α) and f (β) for two kinds of values, x = α and x = β, and f (α) + f (β), f (α) - f ), F (α) * f (β), f (α) / f (β) can also be calculated.

About

Matrix Solver Step by Step

This app serves as a visual guide and calculator for linear algebra concepts. It performs various matrix calculations, explains algorithmic steps, and provides interactive geometric references and tutorials. It's designed to be understandable for users with minimal prior knowledge.

Highlights
  • Matrix calculations and decompositions
  • Step-by-step algorithm explanations
  • Interactive geometric references
  • Linear algebra tutorials and proofs
  • Matrix operations (multiplication, inverse, determinant, etc.)
  • Eigenvalues and eigenvectors
  • Factorizations (PLU, LD, QR, SVD)
Features
Read full description

“Matrix Solver Step by Step” Linear Algebra learning tool and a Matrix Calculator: * Performs most commonly used matrix calculations and decompositions (see list below). * Demonstrates and explains algorithm steps for almost all the functions. * Draws interactive geometric references when appropriate. * Provides tutorials (explanations and proofs) for most Linear Algebra concepts. The tutorial topics have links to all other relevant topics, making them understandable for users with minimal prior knowledge of Linear Algebra. Every effort is being made to ensure user friendly interface and factual accuracy. The app is, so far, free of charge and free of ads. It is being continuously updated with new functions, graphs, and proofs. Suggestions and corrections are welcome! Write to us at graphmath@aol.com. List of functions (matrix size up to 8x8): 1. Solution for linear systems, real and complex. 2. Geometric solutions for 3 equation linear systems. 3. Matrix multiplication. 4. Matrix inverse, real and complex. 5. Determinant (row reduction, recursive and permutations methods). 6. Eigenvectors and eigenvalues, both real and complex. 7. Diagonalization. 8. Rotation-scaling similarity transformation. 9. Block-diagonalization transformation. 10. PLU factorization for square matrices. 11. LD(L transposed) factorization for symmetric matrices. 12. Column-Row factorization. 13. QR factorization by 3 existing methods: Gram-Schmidt, Givens rotations and Householder reflections. 14. Singular Value Decomposition (SVD), including using of SVD for Image compression. 15. Polar factorization. 16. Interactive graphs for transformation by 2x2 and 3x3 matrices, with derivation of specific matrix types, such as rotation or reflection. 17. Raising a Matrix to power n, where n is any integer between -10 and 10. 18. Matrix exponentials, x = exp(A*t) * x0. 19. Markov chain calculator. 20. Calculation of Correlation matrices and Principal Component Analysis (PCA). UI features: Most recent matrix entry for particular operation and size is saved between program runs. Input or output matrices can be saved to clipboard and pasted into other input screens in the app, text files and spreadsheets. Matrix and Linear Equations entries can be saved into table and are available after application is closed and re opened. Matrix entries can be filled with random numbers, different options for range are provided. Solutions as fractions are available for many functions. Eigenvalues and eigenvectors are shown as fractions and radicals for 2x2 matrices. Tutorial items can be saved into "My Tutorial Chapters" list. Comments can be added to most tutorial chapters and saved into "My Comments" list.

Screenshots

functionCalculator2 screens
Matrix Solver Step by Step4 screens

Verdict

The call

The clearest difference is rating: Matrix Solver Step by Step at 4.8 against functionCalculator's 4.3. Matrix Solver Step by Step also leads on ads (none vs shown) and update cadence (weekly vs every 11 months). functionCalculator's advantage is iOS requirement (10.3 vs 15.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Matrix Solver Step by Step holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Matrix Solver Step by Step has 62 ratings behind it against 6, so its average is the more settled of the two.

UpkeepUpdate frequency

functionCalculator ships an update every 11 months, Matrix Solver Step by Step weekly. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

Scorecard6 real differences · 4 level
functionCalculator versus Matrix Solver Step by Step: the parameters behind the verdict, then further details
ParameterfunctionCalculatorMatrix Solver Step by Step
PriceFreeFree
Rating4.3 (6 ratings)4.8 (62 ratings) — better
Positive reviews80.0% of reviews
Number of ratings662 — better
Update frequencyEvery 11 monthsWeekly — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.3 — better15.0
Further details — not scored
Size6 MB12 MB
Age rating4+4+
DeveloperJirou FukudaYuri Morozov

Customer experience

functionCalculator

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%

Matrix Solver Step by Step

All ratings62 ratings
Positive98.4%
Neutral0.0%
Negative1.6%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

None

functionCalculator

No in-app purchases

None

Matrix Solver Step by Step

No in-app purchases

Questions

Is functionCalculator free?
functionCalculator is free to download, with no in-app purchases.
Is Matrix Solver Step by Step free?
Matrix Solver Step by Step is free to download, with no in-app purchases.
Which has better reviews, functionCalculator or Matrix Solver Step by Step?
Matrix Solver Step by Step is rated higher. functionCalculator averages 4.3 out of 5 from 6 ratings, while Matrix Solver Step by Step averages 4.8 from 62 ratings.
Do functionCalculator or Matrix Solver Step by Step have ads?
functionCalculator shows ads; Matrix Solver Step by Step does not.
Which is updated more often, functionCalculator or Matrix Solver Step by Step?
functionCalculator ships an update every 11 months, and Matrix Solver Step by Step weekly. Most recently, functionCalculator was updated on June 1, 2026 and Matrix Solver Step by Step on September 9, 2026.

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