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BQ is based on an Elo rating system (600–1800). Each area's BQ fluctuates in the 1–100 range based on game performance, and total BQ is the average of active areas. Consistent training leads to more accurate measurements.

Free users can play 3 times per day (7 times for new users within the first week). Watching a rewarded ad grants 1 extra play, up to 5 ads per day. Survival mode allows 1 free play per day (up to 3 extra via ads). Pro subscribers can play unlimited in all modes.

Your planet evolves through 5 stages based on your BQ: Stardust (BQ 1–19) → Asteroid (BQ 20–39) → Planet (BQ 40–59) → Star System (BQ 60–79) → Galaxy (BQ 80+). Each stage offers 6 decoration slots (rings, orbits, nebula, surface, effects, companion star) to customize your planet.

In the Social tab, enter a 6-character Galaxy code to join an existing Galaxy, or create your own. Complete cooperative missions with Galaxy members and grow together.

Android: Google Play app → Profile icon → Payments & subscriptions → Subscriptions. iOS: Settings → Apple ID → Subscriptions. Deleting the app does not automatically cancel your subscription.

Refunds follow each store's policy. For Google Play, visit Google Play customer support. For Apple, visit reportaproblem.apple.com to request a refund.

Pro users have full cloud backup (auto-saved every 5 games, on app background, and on daily mission completion) to restore all data on another device. Free users can sync basic progress including BQ and Elo snapshots.

All ads — banner, interstitial, and rewarded — are removed with a Pro subscription.

Gacha has a pity system. Normal gacha guarantees Rare or higher within 10 pulls, and Premium gacha guarantees Legendary within 5 pulls. A 10-pull guarantees at least 1 Rare (normal) or 1 Legendary (premium). Detailed probabilities can be viewed on the gacha screen.

You can request account deletion in the app via Profile → Settings → Delete Account, or by emailing help@brainfit.bitnara.net. All game data, BQ records, and social data will be permanently deleted.

When a friend signs up using your invite code, you receive 1 day of Pro per friend (cumulative). Your friend instantly gets a 3-day Pro trial. You can find your invite code on the Home tab.

Senior Mode enlarges text and UI elements for better readability. You can toggle it on or off in Settings → Senior Mode.

Training plans let you bundle multiple games into a single routine for continuous training. Free users can create 1 plan (1 repeat per game), while Pro users can create up to 10 plans (up to 3 repeats per game). Each plan can include 2–8 games.

Missing 1 day is a free grace day — your streak is preserved. Missing 2 days uses an Orbit Shield (50 meteor fragments) if you have one, keeping your streak safe. Missing 3+ days resets your streak to 1. Milestone rewards are given on days 7, 14, 21, and 30 of each 30-day cycle.

Yes, you can play games offline. Your game records are stored locally on your device and automatically sync with the server when you reconnect.