No accounts, no cookies
Yesternerd doesn't have accounts, sign-in or a server database. Your scores, streaks and settings live only in your browser's local storage, on your own device — they're never sent anywhere. Uninstalling the app or clearing site data deletes them for good; nobody else can do that for you, and nobody else can see them.
What the analytics collect
Yesternerd uses GoatCounter, a small EU-hosted analytics service built for exactly this: no cookies, no cross-site tracking, no advertising network, and no personal identifiers of any kind. It doesn't set a unique ID for your device or try to recognise you between visits.
What it does record is anonymous counts of named events — things like "a game was started" or "a daily was finished" — so the counts can be tallied into a simple funnel (visits → games started → games finished). It never receives your guesses, the names of figures you've typed, or any answer content. A single word summarises the whole policy: counts, not people.
Analytics are currently on for this device.
It sets the same on-device flag as tapping the small version number in the app's home-screen footer five times quickly (that shortcut still works too). Nothing is ever sent anywhere either way — this only changes whether GoatCounter runs at all.
Writing to the editor
If you write to the editor, the form is hosted by Google, and the link carries your app version and a one-line device description so a bug can be reproduced. Nothing else goes with it, and nothing is sent unless you tap.
Images and data
Portrait and artefact images come from Wikimedia Commons under their stated licences — see Sources for the full register. Historical facts are written and checked for this app; see Corrections for anything fixed after publishing.
Contact
Questions about any of this: daniel.illes12@gmail.com.