Koine doesn’t ask you to sign up, connect your ad account, or create a profile. The numbers you type into the tool are used only to show you a result on the page in front of you. They aren’t stored, saved, or sent anywhere.
We use Umami, a privacy-friendly analytics tool, to see how many people visit Koine and which parts of it get used. It doesn’t use cookies, doesn’t track you across other sites, and doesn’t collect anything that identifies you personally, just anonymous, aggregated usage patterns that help us know what to fix or build next.
If that ever changes, for example if a future paid tier needs an account to track your metrics over time, we’ll say so clearly on that feature itself, not bury it here.