Math Challenge vs Sound Drop AR

CountDown is very simple game for improving math skills.

Sound Drop AR - Build beats in your space. Turn any surface into a playful drum machine. Place reactors in AR, drop bouncing balls, and let physics create evolving rhythms. Every reactor carries its own sound—tap to pick one from 100+ effects, or shuffle for happy accidents. Add beat loops and tone sequences, tweak speed, bounciness, and gravity, and watch (and hear) your room groove. How it works - Move your device to scan—use the focus brackets to place your first reactor. - Tap + to add more reactors and shape the rhythm in space. - Tap a reactor to choose its sound from the built-in library (or randomize). - Adjust Speed, Bounciness, and Gravity to sculpt the feel. - Blend in beat loops and tone sequences at 125 or 130 BPM. Highlights - 100+ sound effects for reactors, plus curated loops & tone lines - Real physics = natural grooves (balls live ~10s for constant motion) - Tap-to-assign sounds with searchable picker & instant preview - Quick BPM switch (125 / 130) and global speed control - Glass UI (iOS 26) — cleaner, brighter, more touch-friendly - Pause/Resume, randomize sets, long-press to delete reactors - Works offline. No logins. No ads. What’s New - Complete UI redesign with the new iOS 26 Glass style - New coaching overlay & focus square for faster placement - Rebuilt audio engine & sound browser (search, preview, tap-to-apply) - Record an audio session and share by mail or Air-Drop - Snappier performance, smoother animations - Pan on empty space to move the directional light (orbit + height) for dynamic shadows - General polish across AR placement, labels, shadows, and controls Tip: Spread reactors at different heights and tweak gravity for polyrhythms. Short bounces = tighter grooves; higher throws = airy, evolving patterns. Enjoy exploring rhythms in 3D