# Ezy Trigonometry

> Interactive trigonometry learning tool with unit circle, ratio table, and formula handbook. (iPhone/iPad app by KGiants.)

- Source: https://appshunter.io/ios/app/ezy-trigonometry/id654848143 (this page in markdown: same URL + `.md`)
- Developer: [KGiants](https://appshunter.io/developer/558271022)
- Category: Education, Utilities
- Price: Free
- Rating: 2.50/5 from 44 App Store ratings · 37 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 5 MB
- Languages: American English
- Released: 2013-06-06
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ezy-trigonometry/id654848143/reviews.md

## What is Ezy Trigonometry?

Ezy Trigonometry is a friendly tool designed to help students understand trigonometry.

FEATURES
+ Interactive unit circle. Allows exploring relations between angles and trigonometric ratios.
+ Bundled with an exact trigonometric ratios table
+ Bundled with a hand book of trigonometric formulas
+ Flexible settings: radians / degrees, related angles, angle snapping
+ Full support for iPhone / iPad and retina display

NOTE
* Tap & Hold to switch unit circle mode

## Key features

- Interactive unit circle
- Exact trigonometric ratios table
- Handbook of trigonometric formulas
- Flexible settings (radians/degrees)
- Angle snapping
- iPhone/iPad support

## Recent user reviews (10 of 37)

All indexed reviews: https://appshunter.io/ios/app/ezy-trigonometry/id654848143/reviews.md

### 1/5 — Lazy Developer

*2025-04-03, version 1.1.1*

Working on iOS 10.3.3

### 1/5 — Crashes

*2021-04-25*

Can’t get it to run

### 5/5 — App needs attention

*2019-12-19, version 1.1.1*

Hi everyone this app is not working I try effortlessly to open it several times whiteout success.maybe the founders need to fix some issues or it is free that’s why it’s locked

### 1/5 — Crashes

*2019-09-28*

Keeps crashing before it even opens

### 1/5 — Sad it’s broken

*2019-04-22*

It crashes immediately

### 1/5 — Don’t download!

*2019-04-16*

First of all I can’t even open that app at all. It doesn’t even deserve a star. I tried using it on WiFi or just my data maybe that was causing it. Nope didn’t work either way. I tried shutting my phone off completely then turning it back on and that didn’t work either. Idk if it’s just my phone but don’t download it.

### 1/5 — Immediately crashes

*2018-12-23*

Downloaded the app and tried to run. Displayed opening screen and closed.

### 1/5 — Crashhhh

*2018-11-09, version 1.1.1*

App crashed ... you guys should really update or take it out of the app store.

### 1/5 — It doesn’t work with later iOS

*2018-11-05, version 1.1.1*

Please update

### 1/5 — Crashes

*2018-10-25, version 1.1.1*

Doesn’t work on ios12

## Frequently asked questions about Ezy Trigonometry

### What does Ezy Trigonometry do?

Ezy Trigonometry is an educational tool designed to help students grasp trigonometry concepts. It provides an interactive unit circle for exploring angle-trigonometric ratio relationships, a table of exact trigonometric ratios, and a handbook of essential formulas.

### What are the key features of Ezy Trigonometry?

Key features include an interactive unit circle, a table of exact trigonometric ratios, a handbook of trigonometric formulas, and flexible settings for units (radians/degrees) and angle snapping. It also offers full support for iPhone and iPad devices.

### Is Ezy Trigonometry free to use?

Yes, Ezy Trigonometry is available for free. The application does not feature in-app purchases or advertisements, providing an uninterrupted learning experience.

### What devices is Ezy Trigonometry compatible with?

The app offers full support for both iPhone and iPad devices, including retina display for enhanced visual clarity. This ensures a consistent and high-quality experience across Apple's mobile platforms.

### How can I use Ezy Trigonometry to study?

You can use the interactive unit circle to visualize how angles relate to trigonometric ratios. The included ratio table and formula handbook serve as quick references for solving problems and reinforcing your understanding of trigonometric principles.

## Version history (last 3 releases)

### 1.1.1 — 2013-11-19

+ Fixed the definition of cotangent. Thanks for pointing it out!

### 1.1 — 2013-11-01

+ iOS 7 support
+ Bug fixes

### 1.0 — 2013-06-03

No release notes.

## Apps similar to Ezy Trigonometry

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Visual Trig Func](https://appshunter.io/ios/app/visual-trig-func/id645214237) | 1.0 (2) | Free | Education |
| [The Unit Circle App](https://appshunter.io/ios/app/the-unit-circle-app/id6752369385) | — | Free | Education |
| [Unit Circle Calculator](https://appshunter.io/ios/app/unit-circle-calculator/id1606376248) | 3.4 (8) | Free | Education |
| [Beautiful Trigonometry](https://appshunter.io/ios/app/beautiful-trigonometry/id6746460113) | — | Free | Education |
| [Trigonometry calc](https://appshunter.io/ios/app/trigonometry-calc/id1306864057) | 3.0 (2) | Free | Education |
| [Trigonometry(Math Drills)](https://appshunter.io/ios/app/trigonometrymath-drills/id1623896351) | 5.0 (1) | Free | Education |

## More apps by KGiants

- [EzyGraphs](https://appshunter.io/ios/app/ezygraphs/id627870001)
- [Ezy Triangle](https://appshunter.io/ios/app/ezy-triangle/id636410952)

All apps by KGiants: https://appshunter.io/developer/558271022

## Related topics

[ratio trigonometry](https://appshunter.io/ios/topics/ratio-trigonometry) · [ezy trigonometry](https://appshunter.io/ios/topics/ezy-trigonometry) · [kgiants](https://appshunter.io/ios/topics/kgiants)

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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 2026-06-10.*