Comparison

Diffraction Grating Calculator vs Matrix Calc Plus

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

Head to head
About

Diffraction Grating Calculator

Features
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Diffraction Grating Calculator is a physics/math calculator that calculates the angles of diffracted orders of monochromatic light when shone on a reflective diffraction grating. Features: - Instant calculation. - Results are copyable to other apps. - Formulas are included as reference. - Supports up to 16 decimal places. - Supports various units for each input. - Works seamlessly on both iPhone and iPad. - Lightweight, compact app optimized for everyday use. - Ad-free and built with privacy in mind. In optics, a diffraction grating is an optical component with a periodic structure that splits and diffracts light into several beams traveling in different directions. The emerging coloration is a form of structural coloration. The directions of these beams depend on the spacing of the grating and the wavelength of the light so that the grating acts as the dispersive element. Because of this, gratings are commonly used in monochromators and spectrometers. A diffraction grating is a material that contains a large number of parallel slits separated by a distance (d). This periodic separation of slits is usually on the order of micrometers. Because this distance is on the order of the wavelength of light, when light waves pass through the grating, the slits are able to cause constructive and destructive interference among the light waves. The waves will constructively interfere if the angle of reflection delays one of the waves by a whole wavelength. Diffraction grating equation: m * λ = a * sin(θm) Where: m: The order number of the diffracted image, m = 1,2,3 ... θ: Grating angle, in radians a: Grating Spacing, in lines per meter λ: Wavelength, in meters Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

About

Matrix Calc Plus

Features
Read full description

Matrix Calculator is a math calculator designed to solve matrix operations. It allows you to perform matrix operations on two matrices, including addition, subtraction, multiplication, and division, quickly and easily. Features: • Supports matrix addition, subtraction, multiplication, and division. • Generates matrices in LaTeX format, which can be saved as images to your camera roll. • Matrices in array mode can be copied easily. • Customizable font and background colors. • Adjustable font size and type. • Option to display the full matrix operation or the result only. • Includes a matrix reference guide. • Works seamlessly on both iPhone and iPad. • Lightweight, compact app optimized for everyday use. • Ad-free and built with privacy in mind. In mathematics, a matrix (plural: matrices) is a rectangular array or table of numbers, symbols, or expressions arranged in rows and columns. It is used to represent a mathematical object or describe properties of such objects. Matrix Operations: Adding or Subtracting Two Matrices: A matrix A with 3 rows and 5 columns can be added to another matrix B of the same dimensions (3 rows and 5 columns). To perform addition or subtraction, the two matrices must have the same size, meaning the rows and columns must match. Multiplying Two Matrices: To multiply an m×n matrix by an n×p matrix, the number of columns in the first matrix (n) must equal the number of rows in the second matrix (n). The resulting matrix will have dimensions m×p: m×n×n×p=m×p Dividing Two Matrices: Matrix division is defined as: A/B = A × (1/B) = A × B⁻¹ Where B⁻¹ is the inverse of matrix B. Thank you for your support! Visit nitrio.com for more apps for your iOS devices.

Screenshots

Diffraction Grating Calculator4 screens
Matrix Calc Plus4 screens

Verdict

The call

The clearest difference is iOS requirement: Diffraction Grating Calculator at 13 against Matrix Calc Plus's 18.2. On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Diffraction Grating Calculator costs $2.99 and Matrix Calc Plus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Diffraction Grating Calculator ships an update every 29 months, Matrix Calc Plus every 26 months. The most recent releases landed on May 19, 2026 and June 9, 2026 respectively.

Scorecard1 real difference · 5 level
Diffraction Grating Calculator versus Matrix Calc Plus: the parameters behind the verdict, then further details
ParameterDiffraction Grating CalculatorMatrix Calc Plus
Price$2.99$2.99
Update frequencyEvery 29 monthsEvery 26 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13 — better18.2
Further details — not scored
Size1 MB9 MB
Age rating4+4+
DeveloperTan Chia LingHeng Jia Liang

In-app purchases

None

Diffraction Grating Calculator

No in-app purchases

None

Matrix Calc Plus

No in-app purchases

Questions

Is Diffraction Grating Calculator free?
Diffraction Grating Calculator costs $2.99, with no in-app purchases.
Is Matrix Calc Plus free?
Matrix Calc Plus costs $2.99, with no in-app purchases.
Do Diffraction Grating Calculator or Matrix Calc Plus have ads?
Neither Diffraction Grating Calculator nor Matrix Calc Plus shows ads.
Which is updated more often, Diffraction Grating Calculator or Matrix Calc Plus?
Diffraction Grating Calculator ships an update every 29 months, and Matrix Calc Plus every 26 months. Most recently, Diffraction Grating Calculator was updated on May 19, 2026 and Matrix Calc Plus on June 9, 2026.

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