Best Trigonometry Calculator Apps

207+ iOS apps curated and reviewed

4.4 avg rating
18 free apps
Updated June 2026

Finding the right trigonometry calculator app can be overwhelming with so many options. We've analyzed 207+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Trigonometry Calculator

Trigonometry Calculator.#1

Trigonometry Calculator. by Horitech

Simple Triangle Calculator
Editor's Choice
πŸ”§ Utilities
5.0(3 ratings)
FreeAdsIn-App Purchases
Trigonometry Calculator. screenshot 1
Trigonometry Calculator. screenshot 2
Trigonometry Calculator. screenshot 3
Trigonometry Calculator. screenshot 4
Trigonometry Calculator. screenshot 5
Trigonometry Calculator. screenshot 6

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.

Trig Solver#2

Trig Solver by Creature Code Mobile, LLC

Strong Contender
πŸ”§ Utilities
4.3(78 ratings)
Free
Trig Solver screenshot 1
Trig Solver screenshot 2

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.

Calculator ##3

Calculator # by Incpt.Mobis

Scientific Calculator
Worth Considering
πŸ”§ Utilities
4.6😐(36K ratings)
FreeAdsIn-App Purchases
Calculator # screenshot 1
Calculator # screenshot 2
Calculator # screenshot 3
Calculator # screenshot 4
Calculator # screenshot 5
Calculator # screenshot 6

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

What We Love

  • πŸ‘ Easy to use
  • πŸš€ Powerful functionality
  • πŸ’‘ Helpful for math classes
  • ⭐ Great for students

Room to Improve

  • πŸ” Confusing interface after update
  • πŸ“’ Too many intrusive ads
  • πŸ’° Paywall for advanced features

More Trigonometry Calculator apps to explore

4
Calculate84
Calculate84
Calculate84
Intended for use with TI-84
Free

This app offers a modern graphing calculator experience on your iPhone. It features fast, interactive touch-screen graphing, scrollable windows, and intelligent error messages for a more intuitive user experience. Designed to be a usable alternative to physical graphing calculators.

Fast, interactive touch-screen graphingScrollable windowsIntelligent error messages
πŸ“š Education
(52K)
free with in-app purchases
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
Symbolab - AI Math Solver App
Symbolab - AI Math Solver App
Symbolab - AI Math Solver App
Calculator & Photo Solver
Free

Solve any math problem by typing it in or taking a photo. Get step-by-step solutions for subjects from pre-algebra to calculus. This AI-powered tool offers personalized learning and insights for over 300 million users.

Photo math solverStep-by-step solutionsCalculus calculator
πŸ“š Education
(26K)
free with in-app purchases
7
Mathway: Math Problem Solver
Mathway: Math Problem Solver
Mathway: Math Problem Solver
Homework scanner & calculator
Free

Solve math problems instantly by taking a photo or typing your question. Get step-by-step solutions for algebra, graphing, calculus, and more. Understand complex math concepts with unlimited access to answers.

Math problem solverHomework scannerStep-by-step solutions
πŸ“š Education
(425K)
free with in-app purchases
8
Figure calculator ShapeInfo
Figure calculator ShapeInfo
Figure calculator ShapeInfo
Geometric shape calculator
Free

Easily calculate lengths, angles, and areas of various geometric shapes. Input known values and instantly get precise results for a wide range of 2D and 3D figures. Ideal for students and engineers needing quick geometric computations.

Calculate lengths, angles, and areaSupports 2D shapes (triangle, circle, ellipse)Supports 3D shapes (pyramid, prism, cone, cylinder, sphere)
πŸ“Š Productivity
(134)
ad-supported
9
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
10
Calculator +
Calculator +
Calculator +
Scientific Calc Plus Fraction
Free

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.

Free basic and scientific calculatorIntuitive interface with equation and result displayFraction and percent support
πŸ”§ Utilities
(9.6K)
free with in-app purchases
11
Trigonometry calc
Trigonometry calc
Trigonometry calc
Calculations on right triangle
Free

Calculate side lengths and angles in right-angled triangles using Pythagorean theorem and trigonometry functions. Learn basic trigonometry concepts. An optional premium version removes ads and unlocks a general triangle calculator.

Calculate side lengthsCalculate anglesPythagorean Theorem
πŸ“š Education
(2)
free with in-app purchases
12
Calculator for iPadβ‚Š
Calculator for iPadβ‚Š
Calculator for iPadβ‚Š
Basic, Scientific, Plus Calc
Free

This app offers both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.

Basic & Scientific CalculatorAdvanced Scientific FunctionsLive Currency Converter
πŸ”§ Utilities
(126K)
free with in-app purchases
13
Trigonometry Calculator SinCos
Trigonometry Calculator SinCos
Trigonometry Calculator SinCos
Triangle Area Calculator
$1.99

This app calculates sides, angles, and area for right-angled triangles. It also computes various trigonometric functions and provides a comprehensive collection of trigonometric formulas and laws.

Right triangle solverTrigonometric function calculatorFormulas and laws collection
πŸ”§ Utilities
(3)
paid
14
Desmos Scientific Calculator
Desmos Scientific Calculator
Desmos Scientific Calculator
by Desmos, Inc.
Free

This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.

Basic arithmetic operationsTrigonometric functionsStatistical calculations
πŸ“š Education
(327)
free
15
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.

Ad-free experienceCalculation historyVisual input
πŸ’° Finance
(23K)
free with in-app purchases
16
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
πŸ“š Education
(6.2K)
free with in-app purchases
17
Calculator⁼
Calculator⁼
Calculator⁼
Fraction, Scientific Calc +
Free

This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

Basic & Scientific CalculatorLive Currency ConverterHistory Tape
πŸ”§ Utilities
(357K)
free with in-app purchases
18
Geometry & Trigonometry Solver
Geometry & Trigonometry Solver
Geometry & Trigonometry Solver
AI Answers & Calculator
Free

This app helps users solve geometry and trigonometry problems with AI-powered answers and detailed explanations. It offers a scan-to-solve feature for quick solutions and allows users to revisit past inquiries for study. Ideal for students and educators seeking to master geometric concepts.

Scan and solve geometry problems with a photoInstant and detailed explanationsHistory of solved questions
πŸ“š Education
(11)
freemium
19
Calculator HD Pro Lite
Calculator HD Pro Lite
Calculator HD Pro Lite
Basic & Scientific Calc
Free

This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.

Dual-line displayCalculation historyFull scientific functions
πŸ”§ Utilities
(51K)
ad-supported
20
Panecal Scientific Calculator
Panecal Scientific Calculator
Panecal Scientific Calculator
For engineers and students
Free

This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.

Formula editing with cursor and swipeReuse past formulasVariable memory for calculations
πŸ”§ Utilities
(1.9K)
ad-supported

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