MusicToolKit

MusicToolKit is a lightweight toolkit for musicians. Five essential tools in one app: metronome, tuner, tuning fork, recorder, and keyboard. Launch fast, use fast — simple yet professional. All features are free. METRONOME · Accurate clicks: beats are scheduled sample-by-sample directly into the audio engine, so timing stays rock-steady regardless of UI load or animations · Accents, compound meters, and mixed meter chains · Tempo markings on the slider (Largo to Presto), score-style time signature display TUNER · Built for a calm, stable readout: a volume gate, median filtering, and note-stability checks keep the display from jumping around while you tune · Piano-roll-style scrolling graph visualizes your pitch over time · Sensitivity control and input level meter TUNING FORK · Piano-layout note selector for intuitive picking · Quick reference pitch selection (415–444 Hz) RECORDER · Dual level graph (peak + average): clipping warnings make distortion obvious, so you record at the right level · Lock button prevents accidental taps while recording; standby metering works before you even start · WAV / M4A, 44.1 kHz/16-bit and 48 kHz/24-bit · Recordings are accessible directly from the Files app, with share-sheet export KEYBOARD · Simple tap-to-play keyboard · Sine, square, triangle, and sawtooth waveforms 7 TEMPERAMENTS Equal, Just Intonation, Pythagorean, Meantone, Werckmeister III, Kirnberger III, and Custom (cent-level tuning). Shared across the tuning fork, tuner, and keyboard, with a deviation display that shows the differences at a glance. PRICING All features are free. Banner ads are shown, and a one-time "Remove Ads" purchase hides them forever.