Last updated: June 27, 2026
Skystack ("the app", "we") is a casual arcade game published by Alexander Lübcke. This policy explains what data is processed when you play.
We do not run our own servers. We do not ask for your name, email, phone number, or location. Your game progress (high score, coins, themes, battle pass, daily and weekly progress) is stored only on your device.
The app shows optional rewarded video ads via Google AdMob. To serve ads and measure their performance, AdMob may process device identifiers (including the Advertising Identifier / IDFA), ad-interaction data, and approximate technical information. On iOS you are asked for permission via Apple's App Tracking Transparency prompt; if you decline, you still get non-personalized ads. See Google's Privacy Policy. Manage consent in the app's consent dialog (Google UMP) and in iOS Settings.
If you are signed in to Game Center, your scores and Game Center alias are handled by Apple to power global and friends leaderboards. This is governed by Apple's privacy policy.
Purchases (Premium Season Pass, Tier Skips) are processed by Apple. We do not receive or store your payment details. Apple's privacy policy applies.
The app is rated 4+ and does not knowingly collect personal data from children. Purchases and ads are subject to your device's parental-control / Screen Time settings.
We may update this policy; the "Last updated" date will change accordingly.