# Triangle Solver Free - Geometry Calculator

> Geometry calculator for solving right and irregular triangles. (iPhone/iPad app by 境 饶.)

- Source: https://appshunter.io/ios/app/triangle-solver-free-geometry-calculator/id1065325890 (this page in markdown: same URL + `.md`)
- Developer: [境 饶](https://appshunter.io/developer/935275144)
- Category: Productivity, Education
- Price: Free with in-app purchases
- Rating: 3.60/5 from 40 App Store ratings · 15 written reviews indexed
- Age rating: 4+
- Requires: iOS 6.0 · 25 MB
- Languages: Czech, Dutch, English, French, German, Italian, Japanese, Korean, Polish, Portuguese and 6 more
- Released: 2015-12-16
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/triangle-solver-free-geometry-calculator/id1065325890/reviews.md

## What is Triangle Solver Free?

## Useful Triangle Calculator ##

+ Right Triangle Solver:
Enter 2 values of triangle, calculate the rest values.

+ Irregular Triangle Solver:
Enter 3 values of triangle, calculate the rest values.

## Key features

- Right triangle solver
- Irregular triangle solver
- Calculates missing sides
- Calculates missing angles

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro | $0.99 | one-time |


## Recent user reviews (10 of 15)

All indexed reviews: https://appshunter.io/ios/app/triangle-solver-free-geometry-calculator/id1065325890/reviews.md

### 4/5 — Units

*2025-01-27*

I like the app. Could additional units be added please? Such as U.S decimal feet and also angles in Degrees, Minutes, Seconds (to 4 decimal places) for surveying traverse checks. Thank you.

### 2/5 — Wrong calculation

*2024-06-09, version 1.0.0*

The formula for the irregular triangle is wrong. If you give two known sides and an angle opposite to the unknown side, it will give you wrong angles. They don't even add up to 180.

### 1/5 — Not good

*2022-04-30*

This app is absolute rubbish. Completely inaccurate calculations do not purchase

### 3/5 — Please fix

*2021-03-22, version 1.0.0*

I’ve never got any of the angles to add up to 180° it’s always 150°-175° also add a feature to view history. Thanks

### 1/5 — Units

*2020-12-13*

Units are in metric and not English Standard. Didn’t realize until after I purchased it.

### 1/5 — Very incorrect

*2020-10-28*

Tried to get answers for my homework and noticed the angles didn’t even add up to 180°! Very incorrect, do not waste your time!!!

### 5/5 — Amazing

*2020-06-05*

I was able to get a 100% on all of my homework assignments and super easy to use best app for trig

### 1/5 — Wrong solutions for SSS

*2019-04-23*

Try a triangle with sides 16 20 31.  It gives an answer with a triangle that does not add to 180.  Just wrong programming.

### 5/5 — brilliant

*2019-02-13, version 1.0.0*

all answers were spot on, THANKS!

### 2/5 — Problem

*2018-05-27, version 1.0.0*

The angles in my triangle don’t even add up to 180. What is this?

## Frequently asked questions about Triangle Solver Free

### How does Triangle Solver Free calculate triangle values?

Triangle Solver Free can solve for missing sides and angles in both right and irregular triangles. For right triangles, input any two values. For irregular triangles, input any three values.

### What types of triangles can Triangle Solver Free solve?

Triangle Solver Free can solve for both right triangles and irregular (scalene, isosceles, equilateral) triangles.

### Is Triangle Solver Free available on Android?

Based on the provided data, Triangle Solver Free is available on iPhone and iPad.

### What is the age rating for Triangle Solver Free?

Triangle Solver Free has an age rating of 4+, making it suitable for a wide range of users.

### How often is Triangle Solver Free updated?

The latest version of Triangle Solver Free is 1.0.0, and it was last updated on December 16, 2015. This indicates infrequent updates.

### Does Triangle Solver Free have ads?

Triangle Solver Free does not contain advertisements.

### What is the user rating for Triangle Solver Free?

Triangle Solver Free has a rating of 3.6 stars from 40 ratings.

### Can Triangle Solver Free export calculations?

The provided description does not mention the ability to export calculations from Triangle Solver Free.

## Version history (last 1 release)

### 1.0.0 — 2015-12-16

This app has been updated by Apple to display the Apple Watch app icon.

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All apps by 境 饶: https://appshunter.io/developer/935275144

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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 2026-06-01.*