Privacy policy

For the global leaderboards in pcdr.cz games. Last updated 15 July 2026.

Our games can submit your scores to a global leaderboard we run ourselves at lb.coinbycoin.cz. This page explains exactly what that stores about you. You can play every game, and see every leaderboard, without an account.

What we store

• Display name (nick) — shown publicly on leaderboards. You choose it; it does not have to be your real name.
• Country — optional, only if you set it. Shown publicly.
• Scores and run statistics — your best score per leaderboard, plus stats about the run (duration, pieces, lines) used to detect cheating. Scores are shown publicly.
• Google account identifier and e-mail address — only if you sign in with Google. The identifier is how we recognise you across devices. Your e-mail address is never shown to anyone and we never send mail to it. It is kept as evidence in case of abuse.
• IP address of score submissions — kept for 90 days to detect cheating and abuse, then automatically deleted.

What we do not do

• No advertising, no ad identifiers, no tracking across apps or sites.
• No analytics or profiling.
• We never sell or share your data with third parties.
• No marketing e-mails — we do not send you e-mail at all.

Why we are allowed to store it

Under the GDPR we process this data to provide a service you asked for (running the leaderboard you submit to), and on the basis of our legitimate interest in keeping the leaderboards free of cheating.

Who else sees it

Your nick, country, score and the time you achieved it are public — that is what a leaderboard is. Everything else stays with us. The service runs on a single server we rent in the EU; nobody outside pcdr.cz has access to the database. If you sign in with Google, Google is involved in the sign-in step itself and their own privacy policy applies to that.

How long we keep it

Scores and your profile stay until you delete your account. Submission IP addresses are dropped after 90 days. Anonymous records of submissions (score, time, outcome — with no link to you) are kept as long as the service runs.

Your rights

You can delete your account and all data attached to it at any time, from inside the game or via this page — see that page for the details. You can also change your nick or country at any time in the game, and you may ask us for a copy of what we hold about you.

Contact

Questions, requests, or complaints: privacy@pcdr.cz. If you are in the EU and unhappy with our answer, you may complain to your national data protection authority (in Czechia, the Office for Personal Data Protection).