Chronal vs True Metronome

Chronal is an Android metronome and tuner app for beginner and advanced musicians. Its timing tools include beat and subdivision visualization, tap tempo, custom time signatures, and an editor for creating rhythms. Two synchronized metronomes support polyrhythms, and conductor mode combines metronome and tuner functions. The app includes seven sound packs and can play audio files at custom tempos. A fullscreen mode uses large visuals intended to be visible from a distance. The tuner supports transposition for any instrument and tuning to a custom frequency. It can detect BPM from percussion through the microphone in real time, and provides an A4 reference tone with adjustable frequency. Chronal is ad-free, open source, and funded by donations. It is available through F-Droid and Google Play, with source code on GitHub. The listed F-Droid version requires Android 6.0 or newer. F-Droid lists microphone permission for use while the app is in use, while Google Play reports that the developer declares no data collection or sharing. Chronal is free; the product pages provide no stated support channel.

True Metronome is a metronome app for musicians, with a pendulum display, Italian tempo markings, and natural reverb sound. It supports tempos from 20 to 400 BPM, custom time signatures, and subdivision control. Its frame-accurate audio engine is designed for precise timing, while practice tracking displays daily, weekly, and monthly progress. Beat Detection uses a microphone to identify tempo from an audio source in real time. The maker says this processing happens on the device and audio is never recorded, stored, or transmitted. The web version works in modern browsers without a download and includes tap tempo and pendulum animation. The free version requires no account and has no ads during practice, but free users can use Tap Tempo up to five times per day. Free includes two skins and one bell accent. True Metronome Pro costs 9.99 USD once and adds unlimited Tap Tempo, a Tempo Trainer, live tempo detection, presets, more subdivision patterns, and other features. A special skin costs 0.99 USD once. The app is available on Android, iOS, macOS, and web.