The rhythm practice toolkit for serious musicians. Metronome. Polyrhythm engine. Euclidean patterns. Guided lessons. Practice log. All in your pocket. GROOVE POCKET is a focused practice tool for drummers, percussionists, producers, and anyone serious about internalizing rhythm. No fluff. No ads. Just the tools. THREE PRACTICE MODULES • Click — A metronome with accents, subdivisions, and time signatures from 2/4 to 12/8. Tap to set tempo. Build custom accent patterns. • Poly — A polyrhythm engine. Layer 2-, 3-, 4-, even 5-voice rhythms with visual convergence rings. Watch where 3-against-4 lines up. • Euclid — Euclidean rhythm generator. Tresillo, cinquillo, bossa nova clave, balkan odd meters. Adjust beats and steps. Save patterns. GUIDED TRAINING 25 progressive lessons across 5 chapters: — Foundations — Syncopation & Accent — World Rhythms — Intro to Polyrhythm — Advanced Practice Each lesson loads its time signature, tempo, and pattern automatically. Focus on the rhythm, not the setup. PRACTICE LOG + TROPHIES Track every session. Watch your streak grow. Earn trophies for chapter completions and consistency milestones — 3, 7, 14, 30-day streaks plus 10, 50, 100 sessions logged. ICLOUD SYNC INCLUDED Practice on iPhone, see your progress on iPad. Badges, streaks, lessons, log — all sync automatically. Free for everyone. GROOVE POCKET+ ($4.99, one-time) — 4-voice Poly & Euclid — All time signatures (5/4, 7/8, 11/8, mixed) — Tempo ramp training (60→160 BPM) — Train Chapters 3–5 — Unlimited practice log — CSV export Made for musicians. No subscriptions. No third-party tracking. Just practice.