Your numbers, in your hands
Your data
Your household, saved calculations, and setup answers live in this browser. Download a backup before clearing browser data or moving to another device.
Backups & recovery
Use Data to export your saved work, import a JSON backup as copies, or erase local data. Backups also preserve unfinished setup answers for reference.
Household scenarios
Choose and manage scenarios inside your household. Imported copies keep existing scenarios in place.
Open my household →Saved calculations
Open a calculator to review its saved inputs. Saving a calculation does not add it to your household.
Open calculators →