Groove Pocket

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.