MagicBPM vs Metrognomicon

MagicBPM listens through a microphone to measure music tempo in real time, with a metronome and song identification. Its BPM readout updates as music plays and shows a confidence indicator as the reading settles; a scrolling tempogram displays tempo changes over time. The metronome supports up to 300 BPM, eight time signatures, accented downbeats, and eighth-note, triplet and sixteenth-note subdivisions. It can listen while music plays aloud from services including Spotify, Apple Music, YouTube and Deezer. Tempo analysis runs on-device, and microphone audio is not recorded or uploaded. Song identification sends an acoustic fingerprint to Apple’s Shazam service, requires internet access, and is disabled on CarPlay and Bluetooth hands-free routes. The app does not import audio files: users measure microphone-captured sound or tap the beat. Apps are listed for Mac, iPhone, iPad and Android, with an Apple Watch metronome. The core app is free; iPhone and Android versions show ads, while the Mac app is ad-free.

Metrognomicon is a free iPhone metronome for practicing music that changes tempo. It plays ordered tempo segments and can switch automatically between them. Set each segment by beat count or elapsed time, then choose looping or a single run that stops at the end. Tempo settings span 40 to 240 BPM, entered with a slider or tap tempo. Six click sounds are available, and an optional count-off plays the final four beats before every tempo change. The interface lists light, dark and Brushed Metal themes. The maker describes the app for classical players, students working on difficult passages and musicians practicing pieces with tempo changes. Metrognomicon runs on iPhone, makes no network connections and stores sequences and preferences on the device, supporting offline use. The App Store listing limits it to iPhone. Support is available by email at [email protected]; problem reports should include the device model, iOS version and app version. The website uses Vercel Web Analytics for aggregate visits without analytics cookies or cross-site tracking.