ZZZ Polyrhythm vs Polyrhythm Metronome Pro

Zzz Polyrhythm is a polyrhythm-focused metronome that lets you layer multiple rhythms simultaneously for advanced rhythmic practice. From classical 2-against-3 to jazz shuffle to contemporary 7-against-11 — instantly build any rhythm pattern you can imagine and play it back with professional-quality voices. Key Features [Base Beat — the time-keeper] - Time signature: any numerator (1-16) and denominator (2 / 4 / 8 / 16) - BPM: precise control from 30 to 240 - Tap Tempo: detect any tempo in real time - 8 voices: Wood Block / Click / Cowbell / Sine / Square / Tick / Hi Click / Low Thud [Layered Rhythms — Overlay] Layer additional rhythms on top of the base beat to construct complex polyrhythms. - Starting beat: not only "beat 1, beat 2" but also fractional positions like "beat 1.5" - Length: whole / half / quarter / eighth / sixteenth / thirty-second note × none / dotted / double-dotted - Subdivisions: any tuplet from 2 to 11 - Shuffle mode: play only the first and last clicks for a jazz swing feel - Timing offset: slide the start/end positions back and forth to fine-tune swing - Voice: choose an independent voice for each overlay from 8 sound presets [Visualizer] Concentric ring display lets you see rhythm timing at a glance. A dot lights up the moment each click fires, helping you grasp polyrhythm structure visually. [Presets] (Premium) Save your favorite rhythm configurations with custom names. Recall with one tap. Browse multiple presets and switch any time. [Phase-preserving BPM changes] Change BPM in the middle of a beat — the rhythm doesn't reset, it smoothly accelerates or decelerates, just like a professional studio metronome. Who it's for - Drummers / percussionists training complex rhythmic sense - Jazz / fusion players developing swing feel - Instrumentalists practicing 3-, 5-, 7-tuplet figures - Composers / arrangers analyzing multi-voice rhythm relationships - Performers studying traditional cross-rhythms and contemporary music Languages 日本語 / English / 中文 / 한국어 / Español / Português Switch languages manually from the hamburger menu, or have the app follow your device's system language. Free vs Premium [Free] - Base beat + up to 2 overlay layers - All 8 voices / any time signature / BPM 30-240 - Tap Tempo / Shuffle / full feature access - Discreet banner ad + occasional interstitial [Premium (Ad-free)] - All ads removed - Add 3 or more overlay layers (unlimited) - Save / load / delete rhythm presets Subscription Details - Title: Premium (Ad-free) - Length: 1 month, auto-renewable - Price: 180 JPY / month Payment will be charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://smolt-stage.com/home/privacy/zzz-polyrhythm-privacy-policy-ios-en.html Developer SMOLT STAGE, K.K. © 2026 SMOLT STAGE, K.K. For questions and feature requests, please use the in-app feedback form. We hope this contributes to your musical practice.

Polyrhythm Metronome Pro is the practice companion for musicians who need more than a click. It's a precise metronome, a chromatic tuner, an audio player, and a rhythm-composition toolkit — all in one clean, fast app. WHY THIS METRONOME Most metronomes stop at "click on a beat." This one lets you build real polyrhythms (4 against 5, 3 against 7, anything you need), automate tempo changes for progressive practice, program full sequences of patterns, and even transcribe a rhythm just by tapping it out. Whether you're drilling scales at a slow click or layering complex cross-rhythms, it adapts to how you actually practice. FREE, NO LIMITS - Classic single-voice metronome: precise, low-latency click - Choose your visual style — animated rings, bars, or a glowing halo synced to the beat - Full accent-color customization - Adjustable time signature and subdivisions - Tap tempo - Chromatic tuner with adjustable reference pitch (A=440Hz and beyond) and a built-in note generator for ear training and tuning by ear - Audio player: import a track, slow it down or speed it up, shift pitch independently, set A/B loop points — perfect for learning a piece by ear at a manageable pace UNLOCK PRO (one-time purchase, yours forever — no subscription) - Second voice: play two rhythms at once for true polyrhythmic practice, each with its own beat count, subdivision, and sound - Sequence Programmer: build multi-step patterns, set beat count and repeat count per step, reorder freely, and save your sequences to a personal library - Tap Transcription: tap along to a rhythm you hear or play, and let the app work out the pattern for you - Tempo Automator: set a starting and target tempo, choose how often and by how much it increases, and let your practice sessions build speed automatically — ideal for gradually pushing a difficult passage up to performance tempo BUILT FOR SERIOUS PRACTICE Every screen is designed to disappear during a practice session: large touch targets, a beat display you can read at a glance, and zero unnecessary taps between you and starting the click. No ads, no clutter, no accounts — just open the app and play. A NOTE ON PRICING The core metronome, tuner, and audio player are completely free, with no time limit and no restricted features. The Pro unlock is a single 4.99€ purchase — no subscription, no recurring charge, no expiration. Buy it once when you're ready for polyrhythms, sequencing, and tempo automation. Whether you're a beginner building steady time or a professional rehearsing a five-against-four passage, Polyrhythm Metronome Pro grows with your practice.