Trivice 4+

Triangle Calculator

Oliver Hahn

Designed for iPhone

    • 3.5 • 2 Ratings
    • $0.99

iPhone Screenshots


The formulary with the law of cosines can stay in the drawer: Trivice calculates the values of any given triangle.
The necessary parameters are:

- Three edges or
- Two edges and one angle or
- One edge and two angles

The input is made completely without the keypad by using the graphical controllers on the corners and edges. Fractions can also be set, for example for imperial units. The value of the active controller is shown in the display in the middle of the device.

In addition to all angles and sides, the area, height, perimeter, inner and outer circle are calculated. The result is shown graphical as well as numeric and can be exported as an image or pdf file. The last calculations can be recalled from the history.

A detailed manual is included.

Also available is Trivice HD for the iPad.

What’s New

Version 3.1

Export of the results as image or PDF
Calculation during input
Preview of the calculated triangle on the edit screen
Request for a rating (at max one time per version)

Ratings and Reviews

3.5 out of 5
2 Ratings

2 Ratings

jdubiner ,

good start

i like your app. feature requests:

* allow numeric input
* allow verticies to be dragged on 'display' screen
* once you have a triangle 'set up' w/b nice to make changes w/o having to start over. perhaps some way to remember the data entered and modify one of those 3 or 4 values. highlihgt entered data in gold?

yours in triangularity...

josi64 ,

Great and helpful

It helped me often at my DIY projects.
Stay tuned, I heard from the developer that he will update the app for iOS11, so don't delete it if it does not work for a while. The update might take til Oct/Nov '17.
Edit: the update for iOS 11 just got live! Great job, thx much!

App Privacy

The developer, Oliver Hahn, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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