Trigonometry Calculator

Trigonometry Calculator

4.40
191+ Reviews
4.40
191 + Reviews
1
9%
2
1%
3
4%
4
10%
5
76%

User Reviews

Evan Kallinen
Evan Kallinen
August 10, 2023
Not very efficient, every time you fill in AB or C it covers the screen with the input keyboard. Most of the time when I use this app at work I'm trying to visualize what I'm calculating. So it's pretty annoying to tap out of the input just to look at the triangle every 30 seconds. And the ads make this app unuseable. I would just pay if it was optimized.
Mario Laureano
Mario Laureano
January 13, 2026
I hate this app with a passion, I cant put in two different variables without a ad popping up and then when you wait it out until the ad is done, it won't even go back to the calculations. You have to close and restart the app.
Trucker ALVAREZ
Trucker ALVAREZ
October 28, 2022
Ok, I am a lorry driver with a crane. It is vital to have a reduced chain length because that would avoid over extending the boom and unnecessary reaching 100% lifting capacity, when the norm is to work bellow 80% for a Safe Working Load (SWL). I am also an Appointed Person, and this app is an excellent aid for my calculations. I don't know what the pro version does differently.
Francis Henn
Francis Henn
October 24, 2023
I grew up when doing these calculations, we had to use a reference book with tables òf numbers to put in, even during exams! For my very limited use in farming & farm buildings, I find this app invaluable. Yes, it has adverts, but it is for free, so no complaints
LuxiChara
LuxiChara
May 2, 2021
Very good, at first I thought it wasn't going to work and transforming my question to fit the information I was supposed to give was a bit confusing but the app did work and found my answer. I was really annoyed because I couldn't find the answer by myself, but this app saved me! The only thing is, if you don't have pro, it won't tell you the method to how it solved the problem. But still very good!
Glen Spivey
Glen Spivey
July 17, 2024
I installed this app to quickly square up a concrete form, but now it's my goto trig app. I use it every week and often use it several times a week. You can call me cheap for not upgrading to the pro version, but the free version does almost everything I need. Great App. Thanks
A Google user
A Google user
April 17, 2020
Great App, works exactly, makes calculation with a breeze and accurate. Though it would be nice where the sides of the angles input, create drop down to change from mm,cm,m,km and inches. Just like how we can convert from degrees to radians. Otherwise good be app, keep it up.
Adam Lee
Adam Lee
June 6, 2025
Definitely not worth using if you go through the cookies and tracking list it's an essay. Then on top it's flooded with adverts, rather just use a real calculator then have all that tracking me and popping up adverts for a simple calculator.
Mark Delay
Mark Delay
November 9, 2025
To many adds, and inappropriate adds.
Kenneth Clayton
Kenneth Clayton
November 18, 2021
I've used this app to: 1. Calculate aircraft altitudes to fly a 3 degree glide slope on an instrument approach. Values used in planning the approach. 2. Countless carpentry calculations. 3. Land survey distances 4. Measure aircraft rudder deflection angles using laser beams. Set rudder limit stops with high accuracy. Building an aircraft. The adds are a nuisance but acceptable. I've used this app for 3+ years. This app is a valuable resource.
A Google user
A Google user
February 12, 2020
It's ok, however it would certainly better if it allowed us to do multiple angles/sides or change the ammount of factors on each calculation, and also if the image would change, as in my experience it did not. Overall ok for smaller equations but could certainly be better.
paul conn
paul conn
December 22, 2025
good job,ads are a bit annoying!
Peter Handley
Peter Handley
March 13, 2021
simple to calculate. It's enough to make me lazy. It would be nice to make a simple addition to the app. In italics add the formula used to give the answer in the background somewher
henry pinney
henry pinney
January 23, 2026
excellent app but far too many ads
Mike Ballew
Mike Ballew
June 26, 2021
I am a casual user, but this app has been a big help in calculating figures related to stereoscopic cinematography. (That's just a fancy way of saying 3-D movies.) But, take it from me, this app is intuitive and helpful and well worth using.
Sebastien Chainé
Sebastien Chainé
November 24, 2023
Ads... True it say the app has ads but it's super crazy annoying when the ads randomly start playing right in the middle of some calculations...
A Google user
A Google user
January 23, 2020
Does exactly what it says on the tin. Clear in every respect. Although the adverts are non-intrusive, if I use it a lot I definitely will consider buying the PRO version.
popsomali
popsomali
December 1, 2020
Pretty handy. Use it at least once a week. I do alotta building on the fly. No blue prints or drawings. Easy to figure out measurements and angles.
Justin Mattix
Justin Mattix
April 14, 2024
I use this regularly for carpentry. I use it often enough I decided to skip the ads and pay 3 bucks to upgrade. Now it's even better.
A Google user
A Google user
May 1, 2019
The math is wrong. 2 angles cant give you a answer you must have a distance to come up with an answer. This app doesnt work. I try to put in 90deg 60deg and then it wont let me put in a length . so your screwed