# Circle Coordinate Calculator — Unit Circle & Trig Solver

> Unit Circle & Trig Solver (iPhone/iPad app by Heng Jia Liang.)

- Source: https://appshunter.io/ios/app/circle-coordinate-calculator/id1626424109 (this page in markdown: same URL + `.md`)
- Developer: [Heng Jia Liang](https://appshunter.io/developer/1532000635)
- Category: Education, Utilities
- Price: $2.99
- Age rating: 4+
- Requires: iOS 17.6 · 1 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2022-05-27
- Data updated: 2026-08-01
- User reviews in markdown: https://appshunter.io/ios/app/circle-coordinate-calculator/id1626424109/reviews.md

## What is Circle Coordinate Calculator?

Circle Coordinate Calculator is a powerful trigonometry tool that helps you instantly find unit circle coordinates, sine and cosine values, slopes, and line equations from any angle.

Perfect for students, teachers, engineers, and anyone learning trigonometry, this app visualizes the unit circle and calculates results in real time with an interactive canvas.

Unit Circle Calculator
Enter any angle and instantly calculate:
• sin(θ) and cos(θ) coordinates
• x and y values on the unit circle
• Slope (m) of the line from origin
• Equation of the line (y = mx)
• Coordinates at different distances from the origin
All results update instantly and can be copied with one tap.

Live Interactive Visualization
Understand trigonometry visually with a dynamic canvas.
• Real-time unit circle rendering
• Drag the point to change the angle
• Pinch to zoom and pan the canvas
• See angles, coordinates, and slopes update instantly
• Optional labels and grid display
Perfect for learning how sine and cosine change as the angle moves around the circle.

Step-by-Step Math Solutions
Enable step-by-step explanations to see how the results are calculated.
Helpful for:
• Homework
• Exam preparation
• Understanding trigonometric formulas

Reference Guide
Includes a built-in math reference explaining:
• Unit Circle theory
• Sine and cosine relationships
• Line slope formula
• Equation of a straight line

Clean and Modern Interface
• Light Mode and Dark Mode support
• Fast and simple interface
• Works great on iPhone and iPad

The unit circle is a circle centered at the origin with a radius of 1 unit. It is represented by the equation:
x² + y² = 1

The values of x and y are determined using trigonometric functions:
x = sin θ
y = cos θ

Therefore, the values of sin θ and cos θ must be such that the sum of their squares equals 1.

The Slope (m):
m = change in y / change in x

Equation of a straight line:
y = mx

Thanks for your support and do visit nitrio.com for more apps for your iOS devices.


## Version history (last 3 releases)

### 1.5 — 2026-03-20

- Optimized for the latest devices.
- Fixed minor bugs.
- Improved and redesigned the UI.

### 1.1 — 2025-06-25

- Updated for the newest devices.
- Minor bugs fixed.

### 1.0 — 2022-05-27

No release notes.

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## More apps by Heng Jia Liang

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All apps by Heng Jia Liang: https://appshunter.io/developer/1532000635

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*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 2026-08-01.*