Can’t remember Bernoulli’s equation or the formula for the volume of a sphere? Here is the reference that you need! Not only that, you can enter the values that you know and this app will solve the equation! There are over 76 equations in 7 categories for a total of more than 350 different solution scenarios.

Features include formulas for basic geometry and trig, and physics equations in the areas of mechanics, rotational mechanics, electricity & magnetism, fluids & thermal, and waves & optics.

In addition, tables are included for metric prefixes, common physical constants, unit symbols and abbreviations, as well as the Greek alphabet.

If we missed your favorite, or you have suggestions, you can email us from the contact page. We want you to be satisfied!

What’s New

Version 1.2.1

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

Updated for iOS 11

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings


Handy, Saves Time!

Great reference tool, a must-have for high school students. Save yourself a lot of time and hassle looking up equations and entering them into your calculator by just using this app.

CorradoRacer ,

Great App! Very useful Tool!

Very user friendly and includes all the proper units! Great reference tool. Definitely an awesome app and worth far more than the $1 it costs!!!

Evildrdrew ,


There are plenty of things that would make this app more visual friendly and features can be added to make the app smarter.

That being said... I am so pleased with what is offered. I have not found an app that just delivered all the fundamental engineering equations in one source.

If you are an engineer in the field (like myself) or a student, this app is for you!

App Privacy

The developer, SnecaDev, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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