Chronal vs 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.

Metronome+ combines a metronome, chromatic tuner, setlist, recorder, and pitch player in one app for iPhone, iPad, and Mac. The metronome supports customizable accents, tap tempo, and seven custom accent colors. Its tuner and pitch player can run simultaneously with the metronome. Auto loop changes tempo automatically over time. Setlist mode saves favorite settings, while recorder mode lets users record and share practice. The app is free to download, with in-app purchases unlocking modes. The US listing shows Unlock Everything for $9.99 and separate listed purchases for $3.99 each. iPhone and iPad require iOS 15.0 or later and iPadOS 15.0 or later. Mac support requires macOS 12.0 or later and an Apple M1 chip or later. The developer asks users to email bug reports and feature requests. Its privacy disclosure says potentially linked data includes location, identifiers, usage data, and diagnostics; Apple says those practices have not been verified by Apple.