Underlay: Deduction Puzzle. Antomic Tech Pty Ltd. Last updated 9 October 2026.
We do not collect personal information. Underlay has no account, no sign-in and no analytics. We run no servers that receive data from the app.
Your progress, stars, coins, settings and scores are saved on your device only.
Underlay offers an optional rewarded ad in the Shop that you can choose to watch for free coins. Ads are provided by Google AdMob. When an ad is requested, Google may collect and use device information such as your advertising identifier, IP address and ad interaction data to serve and measure ads and to prevent fraud. We do not receive this data. See Google's advertising policies and Google's Privacy Policy. You can limit ad tracking in iOS Settings, Privacy and Security, Tracking. No ads are shown unless you tap the ad button.
In-app purchases are processed by Apple. We do not see your payment details.
If you are signed in to Game Center, Underlay submits your scores to Apple's leaderboards. Apple handles that data under Apple's Privacy Policy.
Underlay does not knowingly collect personal information from anyone, including children.
If this policy changes, the new version will be posted here with a new date.
Antomic Tech Pty Ltd, contact@antomictech.com.