Comparison

Multi dimention Matrix Calculator vs Scientific Calculator Plus 991

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

Head to head
About

Multi dimention Matrix Calculator

Perform advanced matrix operations with ease. This tool supports calculations for matrices up to 100x100 dimensions, including addition, subtraction, multiplication, division, transpose, determinant, and inverse.

Highlights
  • Matrix addition and subtraction
  • Matrix multiplication and division
  • Transpose matrix calculation
  • Determinant calculation
  • Inverse matrix calculation
  • Supports up to 100x100 dimensions
Features
Read full description

Matrix Calculator is a calculator using that you can perform several operation. It can calculate up to 100x100 dimension matrix You can do so much more. Take advantage of the power of your device and do really powerful matrix calculations in a matter of seconds. Customize your input matrix exactly. Any matrix dimensions are now possible. Visualize your input with the help of the really awesome interface. Supported operations: * Addition * Subtraction * matrix Multiplication: always left multiplication * matrix Division * Transpose Matrix We are doing also several Matrix calculation like determination , Inverse matrix etc. Like us on instagram : @iappstudio.

About

Scientific Calculator Plus 991

This app is a powerful scientific calculator with graphing capabilities, a formula library, and a unit converter. It offers natural display input, advanced math functions for algebra, calculus, and statistics, and supports various number bases and formats.

Highlights
  • Natural display input
  • Graphing module
  • Formula library
  • Unit and currency converter
  • Algebra and calculus tools
  • Matrix and vector operations
  • Statistical calculations
Features
Read full description

NCalc — Powerful Scientific Calculator, Graphing, and Converter NCalc combines a natural-display scientific calculator, advanced math tools, a full graphing module (as 83/84 calculator), a large formula library, and a comprehensive unit and currency converter—designed for students, engineers, and anyone who loves math. ◉ Main Calculator Features - Natural display: Enter expressions exactly as in textbooks—fractions, roots, exponents, and more—see results as written on paper. - Keyboard layout: Matches popular models for familiarity and speed: 115 ES Plus, 991 ES Plus, 300 ES Plus, and 991 EX. - Symbolic and numeric modes: Perform exact fraction calculation or evaluate numerically when needed. - Arbitrary precision integers: Work with very large integers without losing accuracy. - Output types: Choose from fraction, mixed fraction, decimal, repeating decimal, degrees/minutes/seconds, and polar coordinates. - Angle units: Degree, radian, and gradian (grade). - Decimal formatter: Display numbers in normal, engineering, engineering SI, scientific, or fixed formats. - Calculation history: Review and reuse past calculations with ease. - Copy and paste support for fast data entry and sharing. ◉ Algebra, Calculus, and Core Math - Algebra calculation: Expansion, factorization, simplification, and more. - Calculus calculator: Derivatives, integrals, and limits of expressions. - Complex number calculation: Arithmetic, polar/rectangular conversion, exponential, logarithm, powers, roots, and full trigonometric functions. ◉ Equations and Inequalities - Equation solver: Solve general equations, plus dedicated solvers for quadratic, cubic, and quartic equations. - System of equations solver: Solve systems with 2, 3, or 4 variables. - Inequality solvers: Quadratic, cubic, and quartic inequalities with interval-based solutions. ◉ Matrices and Vectors - Operations: Addition, subtraction, multiplication for matrices and vectors. - Advanced tools: Determinant, inverse, transpose, rank, eigenvalues, and eigenvectors. ◉ Statistics and Distributions - Statistical calculation: Descriptive stats and regression calculation (including a regression plotter). - Distribution calculation: Normal distribution, binomial distribution, Poisson distribution, t-distribution, chi-square distribution, and F-distribution. ◉ Number Bases and Formats - Base N calculation: Effortlessly switch between binary, octal, decimal, and hexadecimal, with arithmetic in each base. ◉ Tables, Variables, and Custom Functions - Table Generator: Generate value tables based on any expression and range. - Calculator variables: Store values and reuse them across calculations. - User-defined functions: Create your own functions to streamline repetitive work. - Built-in constants: A rich set of mathematical and physical constants. ◉ Formulas - Extensive formula collection: Math and Physics formulas, clearly categorized—ideal for secondary school, high school, and university students. ◉ Unit Converter - Currency Converter - 1000+ unit conversions ◉ Graphing as 83, 84 calculator - Cartesian functions, implicit plots, polar, and parametric. - Tracing, roots, intersections, extrema, derivative, and integral evaluations on graphs. ◉ Auto-renewing subscription You may purchase an auto-renewing subscription through an In-App Purchase. • Auto-renewable subscription • Your subscription will be charged to your AppStore account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your AppStore Account Settings after purchase • Privacy policy and terms of use: https://ncalc-app.web.app/terms-of-services.html

Screenshots

Multi dimention Matrix Calculator2 screens
Scientific Calculator Plus 9914 screens

Verdict

The call

The clearest difference is rating: Scientific Calculator Plus 991 at 4.7 against Multi dimention Matrix Calculator's 4.0. Scientific Calculator Plus 991 also leads on update cadence (every 2 weeks vs every 8 months) and review sentiment (92% vs 67%). Multi dimention Matrix Calculator's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price 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. Scientific Calculator Plus 991 sells 4 in-app purchases, starting at $1.99 per month. Multi dimention Matrix Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Scientific Calculator Plus 991 holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Scientific Calculator Plus 991 has 13K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 67% of Multi dimention Matrix Calculator's written reviews are positive against 92% of Scientific Calculator Plus 991's.

UpkeepUpdate frequency

Multi dimention Matrix Calculator ships an update every 8 months, Scientific Calculator Plus 991 every 2 weeks. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.

Scorecard8 real differences · 2 level
Multi dimention Matrix Calculator versus Scientific Calculator Plus 991: the parameters behind the verdict, then further details
ParameterMulti dimention Matrix CalculatorScientific Calculator Plus 991
PriceFreeFree
Rating4.0 (3 ratings)4.7 (13K ratings) — better
Positive reviews66.7% of reviews91.7% of reviews — better
Number of ratings313K — better
Update frequencyEvery 8 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS8.0 — better15
Further details — not scored
Size5 MB208 MB
Age rating9+12+
DeveloperTarika SultanaTran Duy

Customer experience

Multi dimention Matrix Calculator

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Scientific Calculator Plus 991

All ratings12,502 ratings
Positive92.0%
Neutral2.6%
Negative5.4%
Written reviews506 reviews
Positive91.7%
Neutral3.2%
Negative5.1%

Bugs and requests

Multi dimention Matrix Calculator

Not enough reviews yet to summarise bugs or requests.

Scientific Calculator Plus 991

Reported bugs

3 issues
  • Keyboard input stops working after switching screens
  • Incorrect calculation results for certain operations
  • App crashes on some devices after recent update

Requested features

5 requests
  • Add option to change display font and color
  • Improve cursor control and editing capabilities
  • Implement auto-simplification for complex expressions
  • Add more handwriting font options
  • Expand graphing and equation solving features

In-app purchases

None

Multi dimention Matrix Calculator

No in-app purchases

4 purchases

Scientific Calculator Plus 991

Subscriptions2
  • Calculator month subscription$1.991 Month
  • Calculator yearly subscription$3.991 Year
One-time2
  • Calculator Premium$5.99
  • Calculator Pro$5.99

Questions

Is Multi dimention Matrix Calculator free?
Multi dimention Matrix Calculator is free to download, with no in-app purchases.
Is Scientific Calculator Plus 991 free?
Scientific Calculator Plus 991 is free to download, with in-app purchases available.
Which has better reviews, Multi dimention Matrix Calculator or Scientific Calculator Plus 991?
Scientific Calculator Plus 991 is rated higher. Multi dimention Matrix Calculator averages 4.0 out of 5 from 3 ratings, while Scientific Calculator Plus 991 averages 4.7 from 13K ratings.
Do Multi dimention Matrix Calculator or Scientific Calculator Plus 991 have ads?
Scientific Calculator Plus 991 shows ads; Multi dimention Matrix Calculator does not.
Which is updated more often, Multi dimention Matrix Calculator or Scientific Calculator Plus 991?
Multi dimention Matrix Calculator ships an update every 8 months, and Scientific Calculator Plus 991 every 2 weeks. Most recently, Multi dimention Matrix Calculator was updated on October 17, 2026 and Scientific Calculator Plus 991 on October 19, 2026.

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