PolyTune: Tuner & Metronome

iDevAli

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About this app

PolyTune is the essential, ultra-precise all-in-one companion for acoustic guitarists, electric players, bassists, ukulele enthusiasts, and musicians of every skill level. Built with a high-performance digital signal processing (DSP) engine, PolyTune delivers immediate, zero-latency pitch detection and rock-solid metronome timing.

Whether you're tuning backstage, practicing complex rhythms, or training your ear with reference tones, PolyTune gives you professional studio accuracy in your pocket.

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KEY FEATURES
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🎯 ULTRA-PRECISION CHROMATIC & GUITAR TUNER
• Needle Accuracy: ±0.1 cent visual analog VU-meter and digital cents readout.
• Instant Pitch Detection: Auto-detects notes across a wide frequency range (A0 to C8).
• Interactive Headstock: Visual peg indicators with real-time in-tune guidance and target frequency display.
• Needle Damping: Adjustable response smoothing for noisy practice environments and rehearsal rooms.
• Strobe & Meter Views: High-contrast neon interface engineered for low-light stage visibility.

⏱️ VISUAL METRONOME & TAP TEMPO
• Rock-Solid Precision: Sample-accurate audio engine with zero drift or lag.
• Visual Pendulum: Smooth animated pendulum sweep and dynamic pulsing LED beat indicators.
• Tap Tempo: Instantly match any song tempo by tapping the rhythm with your finger.
• Tempo Range: Wide 20 BPM to 300 BPM support with standard classical Italian tempo markings (Largo, Andante, Moderato, Allegro, Presto).
• Flexible Time Signatures: 2/4, 3/4, 4/4, 6/8, and more with customizable accent beats.

🎵 REFERENCE TONE GENERATOR / PITCH PIPE
• Pure Synthesized Sine Waves: Crystal-clear reference frequencies for vocal warmups and acoustic ear training.
• Chromatic Range: Generate every pitch from C1 to B7 with exact frequency output.
• One-Tap Audio: Quick reference playback directly from the headstock strings or the dedicated pitch pipe screen.

🎸 POPULAR INSTRUMENT & ALTERNATE TUNINGS
• 6-String Guitar (Standard EADGBE, Drop D, DADGAD, Open G, Open D, Half-Step Down)
• 7-String & 8-String Guitars
• Bass Guitar (4-String, 5-String Standard & Drop Tunings)
• Ukulele (Soprano / Concert / Tenor GCEA & Baritone DGBE)
• Violin, Viola & Cello
• Full Chromatic Free-Tuning Mode

🎛️ PROFESSIONAL CONCERT PITCH CALIBRATION
• Calibrate A4 reference pitch from 415 Hz to 466 Hz (supports Baroque 415 Hz, Scientific 432 Hz, and Standard 440 Hz).
• Custom needle sensitivity and tolerance thresholds.

🔒 100% PRIVATE & OFFLINE
• No account, login, or registration needed.
• All microphone audio analysis happens directly on your device. Zero audio data is ever transmitted or stored.
• Works completely offline without internet or Wi-Fi.

Master your pitch and lock in your groove. Download PolyTune today!