This tool allows you to quickly calculate the result of combats, allowing you to input all the necessary data and selecting the appropriate modifiers.

Calculate the initiative rolls for the entire party (and enemies) with a single button click!

You can also make the dice rolls within the app itself.

This is an open source app under GNU General Public License v3.0
Source code: https://github.com/javier-delgado/anima-calculator-ex