MetroGnome vs PolyMetronome

MetroGnome is an iPhone and iPad app combining a metronome, rhythm-pattern editor, and instrument tuner. Its metronome runs from 20 to 300 BPM and offers tap tempo, customizable meters, subdivisions, nine synthesized tick sounds, and live beat accents ranging from strong to silent. Eleven flamenco palos include traditional accent cycles that can be edited during playback. The pattern editor supports unlimited measures, mixed time signatures, rests, tuplets, repeats, tempo changes, and real staff notation. The tuner covers 60 instrument tunings across five families, plus chromatic Any Note mode and 16 historical reference pitches such as Baroque A=415 and Verdi's A=432. These tools run on-device and offline without an account or login, while clicks continue with the screen locked or another app open. The maker says tuner audio is analyzed in memory and not recorded, stored, or transmitted. iOS 17 or later is required; Android is coming soon.

PolyMetronome is a metronome for musicians building practice around complex rhythms. Simple Mode covers time signatures from 2 to 32 beats, tap tempo, subdivisions, and visual beat indicators. Poly Mode runs two metronomes together, with separate beat counts, volumes, stereo positions, and sounds. Alphabet Mode provides 32 subdivision patterns for 16th-note and triplet figures, with notation and multi-bar loops. Score Mode lets users assemble multi-section compositions with individual tempos, repeat counts, and speed-training settings, then organize scores in folders and sync them. Bar Muting can silence beats in cycles or randomly at an adjustable probability; Speed Trainer moves from a starting BPM to a target through linear or stepped changes. Practice Log records dates, notes, BPM, and duration. The app includes 13 sounds, beat flashes, vibration, beat-position indicators, two themes, and six languages. It runs on Android, iOS, and the web; the web app supports Chrome, Firefox, Safari, and Edge. The free plan is free and includes Simple Mode.