Custom Formulas
$3.99
1.7for iPhone, iPad and more
Age Rating
Custom Formulas Screenshots
About Custom Formulas
This app is easy to use, but unlike simpler apps, multiple entered values can be fed into multiple formulas and multiple output values can be displayed. The output of one formula in a group can be fed into the next by using the same variable name.
Related formulas can be grouped into categories to make them easy to find. e.g. Maths formulas, Surveying formulas, Loan interest formulas etc.
The order of variables displayed to the user can be changed, as can the number of decimal digits of precision shown in the output fields.
You can easily share formulas with other users of the app by emailing them.
Three example formulas are pre-installed with the app. In order of increasing complexity they are: slope percentage, compound interest, and point scale factor.
Related formulas can be grouped into categories to make them easy to find. e.g. Maths formulas, Surveying formulas, Loan interest formulas etc.
The order of variables displayed to the user can be changed, as can the number of decimal digits of precision shown in the output fields.
You can easily share formulas with other users of the app by emailing them.
Three example formulas are pre-installed with the app. In order of increasing complexity they are: slope percentage, compound interest, and point scale factor.
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What's New in the Latest Version 1.7
Last updated on May 15, 2024
Old Versions
Fixed bug with formulas containing single letter variable names.
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Version History
1.7
May 15, 2024
Fixed bug with formulas containing single letter variable names.
1.6
Nov 17, 2022
Bug fixes
1.5
Jun 3, 2022
Added an option on the main page menu to rate and review the app.
1.4
May 21, 2022
Added the ability to email and open formula group .cf files.
1.3
May 16, 2022
Added the ability to import and export formula groups
1.2
May 14, 2022
Fixed issues with keyboard getting in the way on compute page.
1.1
May 13, 2022
Improved user interface. Added support for using built-in functions.
1.0
May 10, 2022
Custom Formulas FAQ
Click here to learn how to download Custom Formulas in restricted country or region.
Check the following list to see the minimum requirements of Custom Formulas.
iPhone
Requires iOS 15.4 or later.
iPad
Requires iPadOS 15.4 or later.
iPod touch
Requires iOS 15.4 or later.
Custom Formulas supports English