Seven trivia prompts a day, the same for everyone. Every correct answer counts — but the rarer yours is, the deeper you dive. Find the gem worth 100 and touch the trench floor.
Download on theApp StoreLive demo: watch how rarity decides your depth.
After each dive, THE CATCH opens the complete answer bank — every accepted answer, its rarity, its score, and the fun facts behind the gems. No black-box judging.
Correct means it counts: no trick tiers, no penalty for knowing things. Typos get a friendly "did you mean…?" instead of a rejection.
The daily dive is always free, plus free Endless dives every day and a replayable archive of recent days.
Build a daily streak and bank Streak Freezes along the way — miss one day and your streak survives.
Badges for perfect dives, gem hunting and deep weeks — plus six dive-buddy anglerfish costumes to unlock.
Nothing ever interrupts your dive or your results. One optional purchase unlocks everything forever — it's not a subscription.
Effective date: September 1, 2026
Krillion ("the app") is developed and published by the developer listed on our App Store page. This policy explains what information the app handles and how.
The app requires no account and no sign-in. Your puzzle progress, statistics, streaks, achievements, and settings are stored locally on your device and are not transmitted to us.
The free version shows ads served by Google AdMob. If you grant the iOS tracking permission, AdMob may use your device's advertising identifier to show more relevant ads; if you decline, ads are shown without tracking. See Google's Privacy Policy for details. Purchasing "Krillion Pro" removes all advertising from the app.
We use Google Firebase Analytics to collect anonymous, aggregated usage data (for example, which screens are used and how often the app crashes). This helps us improve the app and is not used to identify you.
In-app purchases are processed entirely by Apple. We never see or store your payment information.
The app is a general-audience trivia game and is not directed at children under 13. We do not knowingly collect personal information from children.
If this policy changes, the updated version will be posted on this page with a new effective date. Questions? Email wuyuping38@gmail.com.
Found a bug, missing an answer we should accept, or just want to say hi? Email wuyuping38@gmail.com — screenshots always help.