Keep a catalogue, a tree or a campaign in plain files, checked for gaps and mistakes, with your own figures and never an invented value.
Catalogue a collection, find the duplicates and compare it with your want-list.
Check a family tree for impossible dates and print the descendants of anyone.
Roll dice with exact odds, run the initiative for a fight and index the characters in your campaign notes.
Choose the kind "Collections", "Genealogy", "Hobby crafts" or "Tabletop".
Free for everything you do on your own computer. Your files stay with you. Privacy in plain words.