Custom Formulas APK

Custom Formulas  Icon
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67 Ratings
Current Version
Date Published
File Size
Package ID
Android Apps

APK Version History

7.3 (*)
Release Date
May 01, 2021
Android 4.0 and up
  • Custom Formulas Screenshot
  • Custom Formulas Screenshot
  • Custom Formulas Screenshot
  • Custom Formulas Screenshot
  • Custom Formulas Screenshot
  • Custom Formulas Screenshot
  • Custom Formulas Screenshot
  • Custom Formulas Screenshot

About Radio FM 90s

This powerful app lets you create your own custom formulas and then perform computations using them by prompting you for the input values.

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.

Three example formulas are pre-installed with the app. In order of increasing complexity they are: slope percentage, compound interest, and point scale factor. There are also a growing number of formulas available to easily download directly in the app from a web sharing hub. Current categories include health, finance, and surveying.

A formula group can be exported or emailed, allowing you to share your creations with other users of the app.

The results from multiple computations using the same formula can be saved to a CSV file for later viewing in a spreadsheet.

You can view the online help here:

What's New in this version

7.3: Add a new option to the preferences page to select all text on the input fields when they are selected.

7.2: Upgraded to target Android SDK 30 as required by Google.

7.1: Bug fixes.

7.0: Added an "Import multiple" option to the formula group options button.

6.8: Added category and formula group sorting options to preferences page.

6.7: Import formula groups with multi-line descriptions. Show imported formula automatically.

6.6: Allow entry of multi-line descriptions for formula groups.