Intoniva: Tuner & Tools

Intoniva opens straight into the tuner.

Tune guitar, bass, or ukulele automatically, select a string manually, or identify notes in chromatic mode. The cents rail shows whether a detected note is flat, sharp, or in tune. Results depend on the instrument, microphone, and background sound.

Features:
• Guitar support for 6, 7, 8, and 9 strings
• Licensed 3+3 and 6-inline guitar headstock artwork, plus 7 to 9 strings
• Four-, five-, and six-string bass, ukulele, violin, viola, cello, mandolin, and banjo
• Standard, lowered, drop, open, and DADGAD presets
• Built-in tunings, search, favorites, and removable custom tunings
• Adjustable A4 reference from 410.0 to 480.0 Hz
• Sharps or flats note naming
• Reference tone when a string is tapped
• Stable in-tune confirmation sound with animated green feedback
• Automatic microphone-source selection with device capability information
• Universal, unplugged-electric, quiet-room, noisy-room, and fast-response tuner profiles
• Independent microphone sensitivity and needle stability controls
• Mechanical metronome from 20 to 400 BPM with meter, subdivision, accents, selectable sounds, volume, mute, and count-in controls
• Offline tempo estimation for a selected song, with confidence and one-tap BPM application
• Canonical Standard E guitar and Standard C ukulele chord diagrams
• Offline song analysis with separate Classic chords, predominant Notes, and Power chords timelines, instrument ranges, playback, and transposition
• Common chord qualities and inversions, with exact or simplified acoustic arrangements for Standard E guitar
• Chord learning, hidden-answer chord quiz, and 12-note ear training with local scoring
• Simple Light and Dark interface
• System-default, English, Czech, German, French, and Spanish interfaces
• Optional hands-free auto-scroll for chords or any Android app, with floating Start, Stop, and speed controls

Song analysis provides estimates. Dense mixes can be ambiguous; results may need correction and do not reproduce every instrument or guitar tab.

Intoniva has no ads, account, analytics, tracking, or internet permission. Microphone audio is analyzed transiently on-device and never recorded, retained, shared, or transmitted.

Selected song files are copied into private app cache for local analysis and playback. They are never uploaded.

Auto-scroll uses Android Accessibility only to perform user-requested swipe gestures. It cannot retrieve screen content and does not read, store, record, or send anything shown on screen. No Shizuku is required.

Recent changes:
Removed external donations and payment links from the Google Play version. All music tools remain free. Tuning, song analysis and saved settings are unchanged.