Bounce Metronome Pro vs Chronal

Bounce Metronome Pro is a visual metronome for musicians practicing time, rhythm, and tempo. Its rhythm options include odd time signatures, flexible subdivisions, swing, drum rudiments, polyrhythms, additive rhythms, and rare rhythms. Tempo controls include tap tempo, fractional BPM, gradual changes, silent intervals, speed drills, and automatic switching between tempos and rhythms. Musicians can follow bouncing visuals, conducting patterns, and beat or sub-beat counts, or use silent metronome mode. Pro also includes accents, selectable instruments, chord accompaniment, stereo panning, and MIDI output for VSTi and sound fonts. The maker describes accessibility features for blind, visually impaired, and deaf musicians. The download includes a full-featured 30-day Pro trial that users can start when they choose. After that, animations pause every few seconds and audio times out after a few minutes unless an unlock key is purchased. Pro costs $29.99, paid once for Windows desktop; the current download can run on Linux using Wine.

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.