Metro X: Tune. Keep time. Play along. On every device you own.

Metro X is one app for every musician: a tuner accurate to 0.1 cent, a metronome you can see, piano accompaniments to play along with, and your sheet music, with every tool floating right on the score. One account on iPhone, iPad, iPhone Duo, Apple Watch, Android and metrox.app. Free to start; Metro X Pro from $2.99 a month with a 7-day free trial.

Download on the App Store Get it on Google Play

Five tools, one score

  • BEAT: Metronome and the ORB. 50 to 600 BPM, subdivisions, an accented downbeat, meters from 2 to 12, tap tempo, spoken counts in 14 languages and Bluetooth delay calibration. The patent-pending ORB floats on top of your score and pulses with every beat. More about the metronome
  • TUNE: Tuner to 0.1 cent. Accurate from the lowest bass string to the top of the piano. String, Halo, Arc, Line or Strobe views, strings in pure fifths, a drone with fifth and octave, seven temperaments and Concert A from 410 to 480 Hz. More about the tuner
  • NOTE: Score reader. A PDF library with Recent, Starred, Sets and search, free public-domain scores from IMSLP, annotation with Apple Pencil, a stylus or your finger, Bluetooth page-turner pedals, camera scanning, a 30-day Trash, and scores that sync to every device. More about the score reader
  • PLAY: Piano accompaniment. Accompaniments for voice, violin, cello, flute, clarinet and horn from public-domain scores, or your own recordings, MIDI and MusicXML. Steady, Practice or Expressive; 75, 90, 100 or 110% of the written tempo; loop any bars, repeat with a rest, climb a tempo ladder and save presets. More about Play
  • SYNC: Sync rooms (patent pending). Everyone in the room hears the same beat, on iPhone, iPad and Android together, with Apple Watch and the web app following. Join with the room code, the invite link or the QR code. Rooms also work with no internet: on the same Wi‑Fi, on the host's hotspot or over Bluetooth alone. Sections (new in 2.3): the host splits the room into Violin I, Cello, Flute… and marks who turns the pages, and every score in that section turns with them. Hosting a room is free. More about Sync rooms
  • Apple Watch. A standalone watch app: a haptic metronome, the String tuner, Play and Sync rooms on your wrist, even without the iPhone nearby, plus remotes for the phone's metronome and the Play player. More about Apple Watch
  • Voice Command (new). Say "Tempo 140", "3/4", "A 442" or "Find Bach cello suite" in any of 15 languages, mixing up to three in one sentence, or turn on hands-free mode and say "Hey Metro" while the app is open. Nothing is recorded. More about Voice Command

Free in your browser, too

metrox.app is also the web app: the online metronome, the online tuner, the sheet music reader and piano play-along run in a current browser with the same account as the app. The name is sometimes written MetroX or METRO X; this Metro X is the music app from Nabee LLC, not a board game or a 3D scanner that share the name.

Every device on the stand

On iPad, on the inner display of iPhone Duo and on unfolded foldables, Metro X switches to a wide layout with the full page of your score and the tools beside it. Android phones, tablets and foldables run the same app, with annotation by S Pen or finger, and a Sync room can mix Android, iPhone and iPad on one beat. The web app at metrox.app has the Beat, Tune, Note and Play tabs in your browser.

Plans

Free: tuner, metronome and the ORB, the score reader with IMSLP and camera scanning, Sync rooms, the Apple Watch app and five Play accompaniments, with no ads. Metro X Pro adds every accompaniment, annotation on every device, cloud backup and import from iCloud, Google Drive and Dropbox, every metronome sound pack and every ORB colour: $2.99 a month or $19.99 a year with a 7-day free trial, or $49.99 once for lifetime access. Plans, schools and ensembles

Frequently asked questions

What is Metro X?

Metro X is a music practice app for iPhone, iPad, Apple Watch, Android and the web: a tuner accurate to 0.1 cent, a metronome you can see (the ORB floats on your sheet music), piano accompaniments to play along with, a PDF sheet music reader with IMSLP, and Sync rooms that keep every device in a room on one beat. Made by Nabee LLC.

Is there one app with a metronome, tuner and sheet music reader?

Yes. Metro X puts the metronome, the tuner, a PDF score reader and piano accompaniments in one app, with the tools floating on the score instead of in separate apps.

How accurate is the Metro X tuner?

To 0.1 cent, from the lowest bass string to the top of the piano, with strings in pure fifths, Concert A from 410 to 480 Hz; a drone and historical temperaments come with Pro.

Can several phones play the same metronome beat?

Yes. In a Sync room every iPhone, iPad, Android, Apple Watch and browser plays the host's beat. Rooms work without internet over Wi-Fi, a hotspot or Bluetooth, and hosting is free.

Does Metro X work on Apple Watch?

Yes. The watch app (watchOS 10 or later) works without the iPhone nearby: a haptic metronome that taps the beat on your wrist, the String tuner, Play and Sync rooms, plus remotes for the phone's metronome and the Play player.

Is Metro X free?

Yes, with no ads. The metronome, tuner, score reader with IMSLP, Sync rooms and the Apple Watch app are free. Metro X Pro is $2.99 a month, $19.99 a year with a 7-day free trial, or $49.99 once for lifetime access.

Download Metro X

Free on the App Store and Google Play. Requires iOS or iPadOS 15.1 or later, watchOS 10 for the Apple Watch app, or Android 8.0 or later. App Store → Google Play →