Featured App

Free MathTrig Screenshot


Math.Trig is a fun, intuitive and easy-to-use app for finding the unknown angles and sides of a triangle. Best of all, Math.Trig is now a free iPhone and iPad app!

Utilizing the exciting interface of the iPhone, you draw triangles directly onto the screen and instantly see the results. All the triangle angles and sides are displayed on the triangle, along with its height and area.

Math.Trig also points to the trigonometry formulas behind the calculations, helping you to get to grips with the math.

The iPhone app comes preloaded with "special" types of triangle, such as isosceles and equilateral triangles. There is also the option to save your triangles for retrieval at a later date.Math.Trig on the iPad

Read more about Math.Trig for the iPhone, iPod touch and iPad.

Latest News

CalcApps makes Math.Trig a free app, as well OptionsEQ upgrade (normally $0.99). Keep up with CalcApps' latest news on our blog.


The latest upgrade includes a new calc, Black Scholes options calculator as well as improved file management fuctions.

What's New?


- Loan and Investment Calculator

CalcApps' latest app has just been upgraded to include a sixth calc. This powerful finance app can be used to calculate mortgage repayments, income funds, invest to retire and more. All results are displayed graphically and can be emailed for use in spreadsheet software. Find out more about Finance.Calc. Special Offer

Finance.Calc continues to be FREE

(for a limited period).

About CalcApps

Welcome to CalcApps.com, we specialize in iPhone and iPod touch apps which are built for the finance and math sectors. As well as making our own apps, we review and compare those on the market to help you choose which one most suits your needs.

Our Apps

The apps we build are designed to be educational, intuitive to use and fun at the same time. CalcApps' quality apps are all specifically made for the iPhone and iPod touch, they are not just imported from a different platform which can lead to a clunky and frustrating user experience. We aim to maximize the functionality of the iPhone, to make the experience of using a CalcApp enjoyable.

MathTrig Icon CalcApps

Why buy a calculator emulator for your iPhone when you can have an app specifically designed to harness the full processing power and capabilities of the iPhone?

Latest iPhone App Reviews

We've compared six iPhone apps for solving algebraic equations and reviewed them all.
Take a look here.


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Math Solver Icon

Math Solver

Math Solver can solve or simplify any algebraic equation, however complicated. Read more...
Equation Solver Free

Equation Solver Free

This free app is simple to use. Solve linear, quadratic, cubic and systems of equations. Read more...

Other Reviews By CalcApps

TriVice Screenshot


TriVice is a beautifully designed triangle-solving iPhone app.
MathTrig Screenshot


The CalcApps' featured app, draw triangles directly on to your iPhone or iPod touch screen. Read more...

Reviews and Comparisons

The number of apps on the market can be overwhelming and it is easy to buy an app thinking it is just what you need, only to find a very low quality product. At CalcApps we impartially review and compare finance and math apps, detailing all their features and providing you with the information to choose the best app.

CalcApps Comparisons

See our feature by feature comparison of options calculators, triangle solving calculators and algebra solvers, available from the App Store.

Got an Idea for an App?

If you have an idea for a math or finance app you would like to see on the iPhone, get in touch.

OptionsEQ just $0.99!

Our iPhone app, OptionsEQ, now costs $0.99 and we're running a special offer, so you csn get the in-app upgrade for free! OptionsEQ is an equity options calculator. Find out more.... .

Need Some Help With Trigonometry?

If you want to know the math behind finding angles, sides and areas of a triangle, then take a look here.