# Trilight - Trivice Light — Triangle Calculator

> Triangle Calculator (iPhone/iPad app by Oliver Hahn.)

- Source: https://appshunter.io/ios/app/trilight-trivice-light/id670194444 (this page in markdown: same URL + `.md`)
- Developer: [Oliver Hahn](https://appshunter.io/developer/324458008)
- Category: Utilities, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 5 MB
- Languages: American English, German (Germany)
- Released: 2013-07-22
- Data updated: 2026-08-27
- User reviews in markdown: https://appshunter.io/ios/app/trilight-trivice-light/id670194444/reviews.md

## What is Trilight?

The free version of Trivice for the calculation of any given triangle.
The necessary parameters are:

- Three sides or
- Two sides and one angle or
- One side and two angles

The input is done completely without the keypad by using the graphical controllers on the edges and sides. The value of the active controller is displayed in the middle.
The result is shown graphical as well as numeric. 

The commercial versions Trivice and Trivice HD can additionally calculate the area, height, perimeter, incircle and circumcircle. They also offer the input of fraction digits and a history to recall the most recent calculations.


## Version history (last 5 releases)

### 2.1 — 2020-11-18

Calculation during input
Preview of the calculated triangle on the edit screen

### 2.0 — 2020-02-12

Design update
Support for iOS 13 and Dark Mode
Graphical rendering of the calculated triangle
Integration of Imprint and Privacy Policy
Refined Quick Help

### 1.0.2 — 2017-10-03

Support for iOS 11

### 1.0.1 — 2014-06-17

Adjustments for iOS 7

### 1.0 — 2013-07-22

No release notes.

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## More apps by Oliver Hahn

- [Trivice](https://appshunter.io/ios/app/trivice/id324458005)
- [Polytrome](https://appshunter.io/ios/app/polytrome/id367282309)
- [Quinterval](https://appshunter.io/ios/app/quinterval/id373810100)
- [Trivice HD](https://appshunter.io/ios/app/trivice-hd/id375604287)
- [Field of Depth](https://appshunter.io/ios/app/field-of-depth/id662879911)

All apps by Oliver Hahn: https://appshunter.io/developer/324458008

## Related topics

[trilight iqmax](https://appshunter.io/ios/topics/trilight-iqmax)

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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 2026-08-27.*