Harmonic Tuner vs Spectrum

Harmonic Tuner is a precision tuner for string players who want more than just a needle. Tune with a fast live readout, then dig into harmonic snapshots to see how your tone changes after the pluck. Whether you are checking intonation, cleaning up a note before recording, or studying overtones and sustain, Harmonic Tuner gives you a focused workflow without unnecessary clutter. Features: • Chromatic tuning with clear cents and frequency readouts • Instrument presets for guitar, bass, ukulele, mandolin, and slack-key guitar • Smooth live tuning display designed for quick visual adjustment • Harmonic Analysis view with timed snapshots after the initial note lock • Harmonic bars that show the strength of the base pitch and upper overtones • Waveform snapshots for comparing the shape of the sound over time • Save, name, reload, and compare harmonic captures • Adjustable reference pitch (A4) • Advanced controls for noise gate, filtering, smoothing, and tracking stability • Input device selection for supported audio hardware Use the main tuner when you want fast, focused tuning. Use Harmonic Analysis when you want to understand what your note is doing after the attack. Harmonic Tuner is built for players who care about pitch, response, and tone.

Spectrum turns your phone into a modern real-time audio analyzer - the clean, fast tool that older spectrum apps never gave you. See sound the moment it happens: a live FFT frequency spectrum and a scrolling spectrogram (waterfall), with automatic peak detection and the matching musical note. Built for a phone screen, with a beautiful dark and light theme - not a cramped desktop port. WHY SPECTRUM • Modern, readable interface - designed for touch, dark & light themes • Save your measurements and revisit them anytime (most analyzers forget everything the moment you close them) • Export the spectrogram as a high-resolution image, or your data as CSV • Works on both iPhone and iPad • Real peak frequency + musical note readout, in cents FEATURES • Real-time FFT spectrum, log or linear frequency axis • Spectrogram (waterfall) view • Tap the chart for a frequency cursor with dB and musical note • Peak hold and peak-frequency tracking • Musical note detection (A4 = 440 Hz) • A-weighting for perceived loudness • Adjustable FFT size (2048 / 4096 / 8192) • Save, name and organize measurements • Image & CSV export • 8 languages SPECTRUM PRO - one-time purchase, no subscription • 1/3 octave RTA view with per-band peak hold - the classic real-time analyzer used for live sound and room tuning • Tone generator: sine tones, 20 Hz-20 kHz logarithmic sweep, white & pink noise for testing speakers and room acoustics • Peak list: the strongest peaks with harmonics tagged • Up to 4 frequency markers on the chart • Calibration offset (±20 dB) to match a reference meter • Extra-high resolution 16384 FFT • High-resolution image export and no ads, forever Everything is processed on your device - no audio is ever uploaded. Microphone access is the only permission needed. Perfect for musicians, audio engineers, students, DIY speaker builders, hum & noise hunters, and anyone curious about the sounds around them.