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By Brendan Winter

This app is only available on the App Store for iOS devices.


IFormulas provides an clean slate to effortlessly look up mathematical formulas.

Categories :
Algebra, Calculus, Chemistry, Geometry, Electrical, Trigonometry, Physics

Hundreds of formulas
Saves Tab Bar Rearrangements
Favorite Formulas
Scrollable and Zoomable Formula View

Suggestions are welcomed. Please shoot me a message if you find a mistake.

What's New in Version 2.2.1

Distance Formula Fixed
Fixed error in last row of search

Fixed crashes while navigating
Retina Graphics - Icon, Formulas, Tab Bar, Navigation Bar
Formulas recreated in LaTex
Custom Navigation Bar
38 New Formulas
Improved Searching
Improved Formula Organization
Saves Tab Bar Rearrangement
Favorite Category (Options: Rearrange and Delete)
Electrical Formulas

iPhone Screenshots

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iPhone Screenshot 5

Customer Reviews

Good but with one problem

Conceptually, this is a very good idea for an app. However, speaking as someone who has as much trouble remembering what all the variables stand for as the formulas themselves, I would get much more use out of it if I didn't have to have a second reference to help me remember what "k" represents in a particular equation. Just replace the variables in your equations with the components they represent, and this truly will be a one-stop-shop for formula recollection. Remember, it's more important to know what a variable represents than to use the "correct" variable for a specific value.

inaccurate formulas

was using to review my trig identities and some are wrong- for example- in the product to sum category one of them is wrong (to difficult to type here) but has sin(a)sin(b) twice with different formulas - one with the formula for sin(a)cos(b)

I know I saw another one that was wrong but since I don't actually have them completely memorized assumed I had it wrong- I have a test in Thursday- thank goodness I know them well enough to spot these error before memorizing them all wrong.

80% complete

This is a great app, exactly what I was looking for. But it would be really nice if the calculus equations had things in terms of "u". Because a lot of the formulas include the derivative of u but you cant tell on this app.

View in iTunes
  • Free
  • Category: Reference
  • Updated:
  • Version: 2.2.1
  • Size: 7.5 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 3.2 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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