# Trigonometry Master — Triangle Calculator

> Triangle calculator for sides, angles, area, and perimeter with visual aids. (iPhone/iPad app by Intemodino Group s.r.o..)

- Source: https://appshunter.io/ios/app/trigonometry-master/id1389001905 (this page in markdown: same URL + `.md`)
- Developer: [Intemodino Group s.r.o.](https://appshunter.io/developer/557849644)
- Category: Utilities, Productivity
- Price: $12.99
- Rating: 2.50/5 from 2 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 12 MB
- Languages: Russian, American English, Dutch, Danish, European Spanish, Italian, Korean, German (Germany), Norwegian Bokmål, Polish and 8 more
- Released: 2018-06-23
- Data updated: 2026-08-29
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/trigonometry-master/id1389001905/reviews.md

## What is Trigonometry Master?

Trigonometry Master is a easy to use app that allows you to quickly calculate unknown sides and angles of any triangle. It will also calculate the area and perimeter and draw the triangle.

The app finds the sides, angles, area and perimeter of a triangle based on input parameters.
- Right triangle:
Enter two values, two sides or a side and an angle, tap Calculate and Trigonometry Master will find remaining values.
- Oblique triangle:
Enter three values, tap Calculate and Trigonometry Master will do the rest.
Valid inputs:
• three sides
• two sides and an angle 
• two angles and a side

Features:
- Solves right triangles.
- Solves oblique triangles.
- Calculates unknown sides, angles, area and perimeter of a triangle.
- Draws a calculated triangle with one click. 
- Supported angle units: degrees, radians.
- 2 input modes based on the required level of visualisation: 
    • Mode 1 (standard mode) - input fields are located above the triangle picture and linked with the picture through the names of sides and angles;
    • Mode 2 (more visualized mode) - input fields for sides and angles are located directly on the triangle picture so you can easily understand which parameter you are entering.
- You can select the desired number of decimal places to adjust the accuracy of the results. 
- History tape to view your recent calculations.
- Back and forward buttons to recall recent calculations.
- Sends results and history via email.
- 'Undo' for the Clear command.
- 7 color schemes.
- Portrait and landscape orientation.

## Key features

- Solves right and oblique triangles
- Calculates sides, angles, area, perimeter
- Draws calculated triangles
- Supports degrees and radians
- Visual input modes
- Adjustable decimal places
- History tape and email results

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/trigonometry-master/id1389001905/reviews.md

### 4/5 — Trig Master

*2021-08-20*

Хорошее приложение. Для iOS очень мало подобных и те, что есть, платные.
Цена за это приложение приличная, а функционал ограничен, за это 4*. Хотелось что бы разработчик добавил в вычисления прямоугольного треугольника хотя бы высоту. А там ещё есть вписанный и описанный радиус, биссектрисы, медианы, площадь…

### 2/5 — Process

*2019-12-03*

Doesn’t have the process.

### 5/5 — Хорошая программа

*2019-05-25*

Спасибо

### 4/5 — Useful triangle calculator.

*2018-10-23*

It’s a triangle calculator. 
Calculates triangles with spare design. Can customize the color. A dark mode to go with those color options would be great too.

I wish the picture of the triangle shape would change to visually represent the entered values.

### 1/5 — 坑

*2018-09-16*

破玩应  没有中文  坑我12块钱

**Developer response:** 该应用程序支持18种语言，包括中文。 在1.1.1版本中，我们在某些设备上修复了自动语言检测的问题。 您也可以通过点击设置（位于左上角）并从语言列表中选择中文来切换到中文。 要选择中文，您应向下滚动到语言列表的底部。如果您有任何其他问题，请通过https://intemodino.com/en/contact-us.html与我们的支持团队联系。
The app supports 18 languages, including Chinese language. In version 1.1.1, we fixed the problem with the Chinese language auto-detection on some devices.  You can also switch to Chinese by tapping Settings (in the top left corner) and selecting Chinese from the list of languages. To select Chinese, you should scroll down to the bottom of the Language list. As the app supports 18 languages, due to the screen size not all language are visible. The Chinese language is at the end of the list, so just scroll the list down. If you have any further questions, please contact our support team at https://intemodino.com/en/contact-us.html.

### 1/5 — 垃圾

*2018-08-24*

垃圾，在外观上无法显示角度，只能计算不能模拟。浪费劳资12块钱

**Developer response:** We are sorry to hear that the app does not work for you.  You can enter sides and angles in two different input modes. We are trying to do our best to inform our users about all features available in the app. On the App Store product page, we provide app description and screenshots which highlight the features and functionality of the app. The app performs triangle calculations without redrawing the scaled diagram.

## Frequently asked questions about Trigonometry Master

### What types of triangles can Trigonometry Master solve?

Trigonometry Master can solve both right triangles and oblique triangles. It calculates unknown sides, angles, area, and perimeter based on the input parameters you provide.

### How does Trigonometry Master handle input and visualization?

The app offers two input modes: a standard mode with input fields above the triangle picture, and a more visualized mode where input fields are directly on the triangle. This allows for easy understanding of which parameter you are entering.

### Can I adjust the precision of the calculations in Trigonometry Master?

Yes, you can select the desired number of decimal places to adjust the accuracy of the results. This ensures you get the precision needed for your specific calculations.

### Does Trigonometry Master offer a way to review past calculations?

Yes, Trigonometry Master includes a history tape to view your recent calculations. You can also use back and forward buttons to recall these calculations.

### How can I share my Trigonometry Master results?

You can easily send your results and calculation history via email directly from the app. This is useful for documentation or sharing with others.

### What units of measurement does Trigonometry Master support for angles?

Trigonometry Master supports two units for angle measurement: degrees and radians. You can choose the unit that best suits your needs.

### Is Trigonometry Master available on multiple devices?

Trigonometry Master is available on Mac, iPhone, iPad, and iPod. This broad compatibility allows you to use it across various Apple devices.

### How often is Trigonometry Master updated?

The latest version of Trigonometry Master is 1.5.0, which was last updated on August 27, 2023. Updates ensure the app remains functional and may introduce improvements.

## Version history (last 5 releases)

### 1.5.0 — 2023-08-27

Now you can draw the calculated triangle.
Updated app translations.
Updated app icon.
Minor bug fixes.

### 1.2.0 — 2020-03-07

Added Czech and Polish localizations.

### 1.1.1 — 2018-09-22

Fixed problem with the Chinese language auto-detection.

### 1.1.0 — 2018-07-13

Added two input modes.
Added User Interface Localization (Spanish, Portuguese, Danish, Dutch, Italian, Finninsh, Greek, Turkish, Japanese, Korean, Norwegian, Swedish and Chinese).

### 1.0.0 — 2018-05-26

No release notes.

## Apps similar to Trigonometry Master

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Emko-Isometric_Pipefitter](https://appshunter.io/ios/app/emko-isometric-pipefitter/id6471570117) | — | Free | Utilities |
| [Remote Hero](https://appshunter.io/ios/app/remote-hero/id1531449891) | — | Free | Utilities |
| [Geometry Calculator - Triangle](https://appshunter.io/ios/app/geometry-calculator-triangle/id6448397954) | 5.0 (7) | Free | Utilities |
| [Pipe and Fitting](https://appshunter.io/ios/app/pipe-and-fitting/id6476142436) | 4.0 (4) | $3.99 | Utilities |
| [Tri-func](https://appshunter.io/ios/app/tri-func/id496807268) | 5.0 (1) | Free | Utilities |
| [Anerpro](https://appshunter.io/ios/app/anerpro/id1100688981) | — | Free | Utilities |

## More apps by Intemodino Group s.r.o.

- [Systems of equations solver](https://appshunter.io/ios/app/systems-of-equations-solver/id566425829)
- [Random Number Generator RNG](https://appshunter.io/ios/app/random-number-generator-rng/id570657392)
- [Equation Solver 4in1](https://appshunter.io/ios/app/equation-solver-4in1/id575826804)
- [GCD and LCM](https://appshunter.io/ios/app/gcd-and-lcm/id603026694)
- [Fraction Calculator 4in1](https://appshunter.io/ios/app/fraction-calculator-4in1/id638829648)
- [Fractions Pro](https://appshunter.io/ios/app/fractions-pro/id756595886)

All apps by Intemodino Group s.r.o.: https://appshunter.io/developer/557849644

## Related topics

[right triangle solver](https://appshunter.io/ios/topics/right-triangle-solver)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*