Best Geometry Calculator Triangle Apps

215+ iOS apps curated and reviewed

4.4 avg rating
14 free apps
Updated July 2026

If you already know Geometry Calculator, this is the deeper bench. 215+ geometry calculator triangle apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.

Top Picks for Geometry Calculator Triangle

Geometry Calculator - Triangle#1

Geometry Calculator - Triangle by Andrey Russkin

Angle, area, volume solver
Editor's Choice
🔧 Utilities
5.0(4 ratings)
$3.99
Geometry Calculator - Triangle screenshot 1
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Geometry Calculator - Triangle screenshot 3
Geometry Calculator - Triangle screenshot 4
Geometry Calculator - Triangle screenshot 5
Geometry Calculator - Triangle screenshot 6

Perform a wide range of geometric calculations for various shapes including triangles, rectangles, circles, and prisms. Features an intuitive interface with instant recalculations and interactive visualizations. Customize units and decimal places for precise results.

Calculator +#2

Calculator + by xNeat.com

Scientific Calc Plus Fraction
Strong Contender
🔧 Utilities
4.6😊(9.6K ratings)
FreeAdsIn-App Purchases
Calculator + screenshot 1

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

What We Love

  • 👍 Great features and easy to use
  • 👍 Efficient and quick
  • 👍 Versatile, functional calculator
  • 👍 Fantastic, easy to use app

Room to Improve

  • 🐛 New updated layout is awful
  • 🐛 App is now terrible
  • 🔒 Paying customer screwed over by update
Geometry Calculator lite#3

Geometry Calculator lite by V PUGAZHENTHI

Circle,Triangle,Cylinder,cube
Worth Considering
📚 Education
4.5(77 ratings)
FreeAdsIn-App Purchases
Geometry Calculator lite screenshot 1
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Calculate key parameters for 26 geometric shapes, including 2D planes and 3D solids. Offers 783 calculations with interactive 3D views for solids. Supports multiple languages and devices.

More Geometry Calculator Triangle apps to explore

4
Triangle Solver Free - Geometry Calculator
Triangle Solver Free - Geometry Calculator
Triangle Solver Free - Geometry Calculator
by 境 饶
Free

This app calculates missing values for both right and irregular triangles. Simply input two known values for a right triangle or three for an irregular one, and it will compute the remaining sides and angles.

Right triangle solverIrregular triangle solverCalculates missing sides
📊 Productivity
(40)
free
5
Geometry Calculator.
Geometry Calculator.
Geometry Calculator.
Circle,Triangle,Cylinder,cube
$2.99

This app serves as a comprehensive geometry guide, offering calculations for 26 different 2D shapes and 3D solids. It covers essential parameters like area, volume, radius, and angles, making it a complete reference for geometric computations.

Calculations for 26 geometric shapes, planes, and solids783 distinct geometric calculationsCovers 2D shapes and 3D solids
📚 Education
(30)
paid
6
Geometry Calculator Pro
Geometry Calculator Pro
Geometry Calculator Pro
Triangle,Circle,Rectangle Calc
Free
🔧 Utilities
(0)
7
Triangle & Angle calculator
Triangle & Angle calculator
Triangle & Angle calculator
Geometry, angle, formulas
Free

Easily solve geometry exercises and verify your calculations with this tool. It simplifies complex problems with a single click, making math more accessible.

Solve geometry exercisesCheck calculationsSimple click interface
📚 Education
(209)
free with in-app purchases
8
Geometry Solver ²
Geometry Solver ²
Geometry Solver ²
AI Math Homework Helper
Free

This app helps with geometry problems using an AI assistant to scan and solve word problems. It offers step-by-step solutions for over 100 geometric shapes, allowing users to calculate area, volume, perimeter, and surface area. Visualize shapes and share solutions easily.

AI geometry word problem solver100+ geometric shapes and propertiesStep-by-step solution explanations
📚 Education
(1.3K)
free with in-app purchases
9
Geometry Calculator Solver
Geometry Calculator Solver
Geometry Calculator Solver
Geometry & Trigonometry solver
Free

This app helps students, teachers, and professionals solve geometry and trigonometry problems. It calculates angles, areas, perimeters, and more for various shapes, providing formulas and steps for learning.

Calculates angles in degrees and radiansSolves for area, perimeter, and heightSupports various geometric shapes
📚 Education
(1)
free with in-app purchases
10
Graphing Calculator Plus AI
Graphing Calculator Plus AI
Graphing Calculator Plus AI
Scientific Graphing Calculator
$5.99

This app serves as a powerful scientific graphing calculator, offering advanced mathematical functions and graphing capabilities. It includes a built-in AI assistant for math queries and a comprehensive user manual. Ideal for students and professionals needing complex calculations and visualizations.

Scientific and graphing calculatorAI-powered math assistantComplex number calculations
📚 Education
(12K)
free with in-app purchases
11
Trigonometry Calculator.
Trigonometry Calculator.
Trigonometry Calculator.
Simple Triangle Calculator
Free

This app calculates key values for right-angled and scalene triangles with high precision. It offers a user-friendly interface, flexible angle units, and includes a reference guide to trigonometric formulas. A subscription unlocks calculation steps and removes ads.

Right-angled & scalene triangle supportFormula reference guideAccurate side, angle, and area calculations
🔧 Utilities
(3)
free with in-app purchases
12
Calculator₊
Calculator₊
Calculator₊
Basic, Scientific, Plus Calc
Free

This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.

Basic and scientific calculationsUnit and currency converterAI-powered math solver with photo recognition
🔧 Utilities
(1.7M)
free with in-app purchases
13
Calculator ∞
Calculator ∞
Calculator ∞
The Best Scientific Calculator
$5.99

This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.

Step-by-step solution hintsMath Photos SolverHandwriting Recognition
📚 Education
(6.2K)
free with in-app purchases
14
Quick Graph
Quick Graph
Quick Graph
Scientific Graphing Calculator
Free

This powerful graphing calculator leverages multitouch displays for 2D and 3D equation visualization. It supports various coordinate systems and offers features like equation editing, evaluation, and a library for storing common formulas. Advanced features are available through an in-app purchase.

2D and 3D graphingMultiple coordinate systemsEquation evaluation
📚 Education
(405)
free with in-app purchases
15
Triangle Solver
Triangle Solver
Triangle Solver
by William Jockusch
Free

Calculate unknown sides and angles of a triangle with ease. Supports various input combinations, including two angles and one side, two sides and one angle, or three sides.

Calculate unknown sidesCalculate unknown anglesTwo angles and one side input
📚 Education
(30)
free
16
Triangle Calculator
Triangle Calculator
Triangle Calculator
Right angle triangle solver
Free

Calculate side lengths, angles, area, and perimeter of right-angle triangles. Visualizes the triangle with adjustable precision and offers options to rotate, flip, and customize themes. Reuses previous entries for efficiency.

Calculates lengths, angles, area, perimeterDraws proportionally correct trianglesAdjustable decimal precision
📊 Productivity
(2)
free
17
GraphNCalc83
GraphNCalc83
GraphNCalc83
Graphing calculator
$12.99

This app offers a powerful graphing calculator experience with touch-based input for enhanced interaction. It supports natural textbook notation, advanced math functions, and various plotting capabilities. Users can also utilize its programming features and built-in tools like unit conversion and a periodic table.

Touch-based graphing and editingNatural textbook notation inputAdvanced math and statistical functions
📚 Education
(3.8K)
paid
18
Desmos Graphing Calculator
Desmos Graphing Calculator
Desmos Graphing Calculator
by Desmos, Inc.
Free

Explore mathematical concepts by graphing any equation, from simple lines to complex series. This powerful tool allows for interactive exploration with sliders, data tables, and animations. It also includes a scientific calculator and supports inequalities and accessibility features.

Graph any equation (polar, cartesian, parametric)Interactive sliders for function transformationsInput and plot data with tables
📚 Education
(1.3K)
free
19
Geometry Calculator
Geometry Calculator
Geometry Calculator
30 Formulas and Calculators
$0.99
📚 Education
(0)
20
Geometry Solver: Calculator
Geometry Solver: Calculator
Geometry Solver: Calculator
Offline. Angle Finder & More
Free

This offline geometry toolkit provides fast, accurate solutions for homework, studying, and quick checks. It offers tools for angles, triangles, circles, and various shapes, along with coordinate and analytic geometry calculations. Designed for high school students and everyday problem-solving.

Offline geometry toolkitAngle finder for triangles and linesTriangle solver (including right triangles)
📚 Education
(15)
free with in-app purchases