What we collect
The date and name you type are used by code running in this page and are never transmitted. There is no account, no login and no server that could receive them.
Analytics
Aggregate and cookieless. It counts that a page was viewed, and it counts two things happening at all: that a profile was calculated and that a number was broken down. Those two counters carry no payload whatsoever — not the date, not the name, not any resulting number, and no identifier for you. There is nothing in the analytics that could be traced back to what you typed.
Advertising
Advertising is contextual and is never targeted using anything you typed. Ad code cannot read the calculator's inputs or its output.
Your rights
Since nothing is stored, there is nothing to export or delete. Questions: support@numbersplain.com.