Tonica vs StringView

Tonica is an app for harmony training. With simple operations, you can efficiently practice singing and instruments. Features: * 5-octave keyboard * Reference pitch selection from A=410-463Hz * Tuning options: Equal temperament, Just intonation major, Just intonation minor * One-touch chord playback * Sustain function that keeps notes playing even after lifting fingers from the keyboard * Transposition function * Metronome function

StringView is a visual fingerboard trainer for bowed and fretted string players. Choose your instrument, pick a scale, and explore the fingerboard as a clear, colorful map of notes, intervals, and scale degrees. 

Explore 16 scales and modes (more to come) StringView includes a complete set of essential scales and modes: • Major / Ionian • Dorian • Phrygian • Lydian • Mixolydian • Natural Minor / Aeolian • Locrian • Chromatic • Melodic Minor • Harmonic Minor • Pentatonic Major • Pentatonic Minor • Diminished (Whole-Half) • Diminished (Half-Whole) • Whole Tone • Augmented You can choose any root note and decide whether to display alterations as sharps or flats, so the view matches your musical background and preference. Notes, intervals, degrees, and shapes Display note names, intervals, or scale degrees on the fingerboard. Each scale degree has its own distinctive shape, and each note has its own consistent color to make patterns easier to recognize. Shapes and labels can be toggled independently, so you see exactly what you need. Harmonics and fret markers A dedicated harmonics mode highlights natural harmonic positions on the fingerboard. Fret markers, numbers, and octave zones offer multiple display modes so you can customize the view to your level and focus. Pinch to zoom Zoom in to focus on a few frets, or zoom out to see the full range — up to 36 frets across the entire fingerboard. Designed for practice Dark glass-themed interface with haptic feedback. Works on iPhone and iPad in portrait and landscape. Your instrument, scale, and display settings are saved automatically between sessions. This visual approach helps you internalize scales, understand the layout of your instrument, and discover new fingerings and melodic ideas — whether you already read music or prefer to learn by sight and pattern.