Best Arbitrary Triangle Apps

217+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated May 2026

Whether you're new to arbitrary triangle or looking for an upgrade, our curated collection of 217+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Arbitrary Triangle

Triangle Calculator#2

Triangle Calculator by Kent Johansson

Right angle triangle solver
Strong Contender
πŸ“Š Productivity
5.0(2 ratings)
Free
Triangle Calculator screenshot 1
Triangle Calculator screenshot 2
Triangle Calculator screenshot 3
Triangle Calculator screenshot 4
Triangle Calculator screenshot 5
Triangle Calculator screenshot 6

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.

Calculator +#3

Calculator + by xNeat.com

Scientific Calc Plus Fraction
Worth Considering
πŸ”§ 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

  • πŸ‘ Great features and easy to use
  • πŸ‘ Efficient and quick
  • πŸ‘ Versatile, functional calculator
  • πŸ‘ Fantastic, easy to use app

Room to Improve

  • πŸ› New updated layout is awful
  • πŸ› App is now terrible
  • πŸ”’ Paying customer screwed over by update

More Arbitrary Triangle apps to explore

4
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
πŸ“š Education
(30)
free
5
Trigonometry Help Lite
Trigonometry Help Lite
Trigonometry Help Lite
Triangle Calculator + Workings
Free

This app quickly calculates unknown angles and sides of right-angled triangles. It offers a workings view for detailed solutions, scale drawings, and a formula reference. Input angles in various formats and customize decimal precision.

Solve right-angled trianglesView detailed math workingsScale drawing of solved triangle
πŸ“š Education
(688)
free with in-app purchases
6
Map Area Calculator - Marea
Map Area Calculator - Marea
Map Area Calculator - Marea
Measure field & land with GPS
Free

Easily estimate land and field areas using GPS coordinates. Calculate distances between points and get results in multiple units. Premium features include saving measurements, adding notes, attaching photos, and calculating prices.

Estimate area from coordinatesCalculate distances between pointsMultiple unit conversions (sq meters, acres, etc.)
πŸ—ΊοΈ Navigation
(1.5K)
free with in-app purchases
7
Trig Solver
Trig Solver
Trig Solver
by Creature Code Mobile, LLC
Free

This application calculates unknown sides and angles of both regular and right triangles. It supports various input combinations, including two sides and an angle, two angles and a side, three sides, or two sides and an angle for right triangles.

Regular triangle solverRight triangle solverCalculate with 2 sides and an angle
πŸ”§ Utilities
(78)
free
8
Geometry Solver Β²
Geometry Solver Β²
Geometry Solver Β²
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
πŸ“š Education
(1.3K)
free with in-app purchases
9
Photomath
Photomath
Photomath
Learn math, step-by-step
Free

Scan any math problem to receive instant, step-by-step explanations and accurate solutions. This app breaks down complex problems into manageable steps, helping users understand the 'how' and 'why' of math. It supports a wide range of math topics, from basic arithmetic to advanced calculus.

Scan math problemsStep-by-step explanationsWord problem solver
πŸ“š Education
(733K)
free with in-app purchases
10
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
πŸ“š Education
(209)
free with in-app purchases
11
Triangle Solver Free - Geometry Calculator
Triangle Solver Free - Geometry Calculator
Triangle Solver Free - Geometry Calculator
by ε’ƒ ι₯Ά
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
πŸ“Š Productivity
(40)
free
12
Basic Calculator+
Basic Calculator+
Basic Calculator+
Basic Four Function Calculator
Free

Perform essential arithmetic operations with a straightforward calculator app. Its large buttons and clear display ensure ease of use, supporting both portrait and landscape orientations.

Basic four functionsClear displayLarge buttons
πŸ”§ Utilities
(243K)
free with in-app purchases
13
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
πŸ”§ Utilities
(3)
free with in-app purchases
14
GPS Fields Area Measure Map
GPS Fields Area Measure Map
GPS Fields Area Measure Map
Distance, acres, boundaries
Free

Accurately measure distance, perimeter, and area using GPS, even offline. Mark points with notes and photos for field scouting, land inspection, or issue logging. Supports various export formats and custom map layers.

GPS walking/driving measurementManual point editingAdd notes, photos, and custom objects
πŸ”§ Utilities
(12K)
free with in-app purchases
15
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

Large buttonsClear displayFast calculations
πŸ”§ Utilities
(404K)
ad-supported
16
MathGPT - AI Math Solver
MathGPT - AI Math Solver
MathGPT - AI Math Solver
AI Problem Solver & Calculator
Free

Instantly solve math problems by taking a photo. Get step-by-step explanations, AI-animated videos, and interactive graphs to understand complex concepts. This AI-powered homework helper covers various subjects beyond math.

Photo-based problem solvingStep-by-step explanationsAI-animated math videos
πŸ“š Education
(5K)
free with in-app purchases
17
Calculator Air: AI Math Solver
Calculator Air: AI Math Solver
Calculator Air: AI Math Solver
Basic, Scientific & Photo Math
Free

Solve math problems instantly with a powerful AI-driven calculator. Features include basic and scientific calculations, a photo math solver, and an AI homework helper for step-by-step explanations. Ideal for students and professionals needing quick, accurate math solutions.

Basic and scientific calculatorPhoto math solverAI homework helper
πŸ”§ Utilities
(81K)
subscription
18
Construction Master Pro Calc
Construction Master Pro Calc
Construction Master Pro Calc
Feet Inch Fraction Calculator
Free

This app is a powerful construction calculator designed for professionals working with dimensions. It offers a wide range of solutions for dimensional math, right angle calculations, area and volume, and special functions, helping to improve speed and accuracy in layouts, bids, and estimates.

Dimensional math and conversionsRight angle and rafter calculationsArea and volume solutions
πŸ”§ Utilities
(39K)
free with in-app purchases
19
Calculator for iPad!
Calculator for iPad!
Calculator for iPad!
Basic & Scientific Calculator
Free

This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.

Basic and scientific calculator modesOver 30 scientific operationsCustomizable appearance (iPad)
πŸ”§ Utilities
(60K)
free
20
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
πŸ“š Education
(1.3K)
free