The calculation of a right-angled triangle is no longer a problem. All edges are calculated with the Pythagorean theorem. If you enter the value of two edges, the third is calculated. All calculations are stored in a history. The final solution can be shared.

- the edges a, b and c can be entered
- calculation of the third edge with the Pythagorean theorem
- history function that saves the input
- complete solution
- the entering of fractions is supported
- option to remove ads

[ Application ]
- there are 3 fields for entering the values ​​using a modified keyboard
- if you have not entered enough values, the text fields are highlighted in yellow
- if you have entered invalid values, the corresponding text field is highlighted in red
- you can switch between the solution view, the input view and the history by swiping and / or touching the buttons
- the entries in the history can be deleted or sorted manually
- if you select an entry in the history, it will be loaded automatically for the calculation
- the entire history can be deleted by pressing a key

What’s New

Version 1.34

Bugfix: The final solution is not covered anymore.

Ratings and Reviews

4.5 out of 5
79 Ratings

79 Ratings

carrrrrrrdi ,

Great app

This app is very useful it’s really great I highly recommended it, the ads are kinda annoying but mans gotta make money. All in all if you need help with Pythagorean’s theorem then this is the go to app.

Developer Response ,

Thank you very much. That is nice to hear.

I totally can understand the issue with the ads. Just for some insight - those ads are calculated in the amount of impression. And 1000 impressions are like 0,50-10$. So ads only work by mass.

But those fullscreen ads come every 2nd calculation for 5s. Would I personally sit next to you and write down the whole calculation it would take some more time I guess. And I am a really slow writer. So it is fair I think.

Anyways, thank you very much for your positive feedback!
Kind regards

Emerai Jas ,

Great but way too many ads.

*text= important
I use the app sometimes, so I decided to write a review. It does everything it needs to. *It can even calculate a missing side of a triangle, not just the hypotenuse.* What would make it even better is if it allowed repeating numbers on the calculator, but for what I need it is great.

*The problem is how many ads there are.* I will be working and all of a sudden an ad pops up. I realize you have to fund the app but an ad every other problem is a lot.

Anyone who wants to download the app as an easy way to check answers, it does the job. *If you use it very often, (unlike me) the ads will probably start to get annoying.* *A more accurate review would be 3.5, I am notching it down because it does not include repeating numbers.*

Developer Response ,

Thank you for your detailed review. That issue with the repeating numbers. You are talking about the issue that numbers like 11, 22, 33, ... are not displayed? To be honest that was a bug I did cause. It took some time to notice that issue, but I hope it is fixed now. So yeah, repeating numbers at your service!

To the ad issue - sounds like it occurs after each calculation. It should not happen this way. I will check this. But for some insight: An impression of one user is like 0,001-0,03$. So we delevopers need all of your patience. (and we are working on options to get a higher revenue to show less ads)

I know, ads are not very useful from the perspective of an app-user. But our ads should take like 5 seconds. Imagine someone would write everything down for you on a paper. This would take more time I guess.

Anyway, thank you very much!

Kind regards

chinos hyper ,


The only reason am giving this a 4 star is because there is an ad every two math problems you do really annoying, just make it an ad to every 5 problems or so.

Developer Response ,

I am sorry for this circumstance. Ads are annoying, even for me. Because mostly they are paid really really bad (that is why most apps need mass ads). But we are working for better options so we can decrease the amount of ads.
Anyways, thank you very much for your positive rating!

Kind regards


Glindemann, Sennoun, Langer GbR
17.8 MB

Requires iOS 13.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish

Age Rating
In-App Purchases
  1. Remove Ads $1.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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