Barline support

Analysis found the beats but put the bar line on the wrong one. Open the song, tap the ⋯ button and choose Correct the downbeat. Play the song and tap the big button on two or three beats you are sure are the one, then choose Move the downbeat here. The bar lines are rebuilt from the beat you tapped, every section is re-snapped, and every saved loop moves with the grid.

The analysis has to pick one level to count at, and on some songs it picks the other one. The grid is still even, so nothing is broken: loop two bars where you would count one, or one where you would count two. Analysis details in the ⋯ menu shows the tempo and metre it settled on.

Sections are the analysis's own division of the song, numbered rather than named, and they are a starting point. For the exact phrase you want, drag across the bars on the waveform instead; the selection snaps to bar lines as you go. A section that doesn't end on a bar line snaps to the nearest one when you tap it, and the last section runs to the end of the song.

Open the loop editor and use Nudge under the start or end bar. Each edge can move along the detected beat grid by up to one beat less than a bar either way (three beats in 4/4), and the menu shows how far it is from the bar line. Bar numbers stay as they were; the nudge is remembered with the loop.

One grid is fitted to the whole song, so a song that speeds up, slows down or has no pulse at the start is the hardest case. Loops in the steady part usually work; Correct the downbeat can rescue the rest, and Shift the whole grid slides everything by a few milliseconds if the lines are consistently early or late. Some recordings will never grid well, and the app won't pretend otherwise.

Barline Unlimited is £2.99 a month or £19.99 a year, taken by Apple and renewing automatically until you cancel. It covers everything: loops, speed and pitch, the count-in, the practice ramp, markers, notes and downbeat correction. New subscribers get the first week free; cancel at least 24 hours before the week ends and nothing is charged. There is no free version after the trial: importing and opening songs needs the subscription. If it ends, nothing is deleted; every song, loop, marker and note stays on the phone and opens again when you subscribe.

No. Apple records the subscription against your Apple Account rather than the phone, so signing in to the same account carries it across; Restore purchases in the app's settings picks it up if it does not appear straight away. It is one subscription on one Apple Account and is not set up for Family Sharing. Apple handles refunds, at reportaproblem.apple.com.

In your App Store account settings rather than in the app: Settings, then your name, then Subscriptions. Manage subscription in Barline's settings takes you straight there. Cancel at least 24 hours before the free week or the current period ends, or it renews. Apple takes the payment and handles refunds, at reportaproblem.apple.com; we cannot cancel or refund for you. Cancelling never deletes anything: your songs, loops, markers and notes stay on the phone, and open again if you subscribe later.

MP3, M4A, WAV, AIFF and FLAC, from anywhere the iPhone's file picker can reach: the Files app, iCloud Drive or a cloud drive that shows up in Files. You can pick several at once; each file can be up to 400 MB and 30 minutes long. Streamed tracks from Apple Music, Spotify and similar services are copy-protected and cannot be imported. A track that exists only inside the Music app, or inside another app, is not a file the picker can see, and other apps cannot send one straight to Barline; save it as a file first. Import only audio you have the right to use.

Barline reads the title and artist tags inside the file. Where a file has none, it uses the file's name: a file called Artist - Title is split into the two, and anything else becomes the title on its own. Either way you can correct both: open the song, tap the ⋯ button and choose Title and artist, or press and hold the song in Songs.

It runs once, on import, on the phone itself, and takes a little while for a few-minute song; the Mapping row at the top of Songs stays until it is done, and Cancel stops it. After that the map is stored, so opening the song is instant and it is never analysed again.

Entirely. The analysis is Apple's on-device framework, the audio is a file on the phone, and the app has no networking code of its own. The only thing it ever connects to is the App Store, for the subscription and, from version 1.1, Apple's rating prompt. Aeroplane mode is fine.

Yes. Playback carries on when the screen locks or you switch apps, and the song appears on the Lock Screen and in Control Centre with play, pause and five-second skips back and forward, which stay inside a loop. A call or Siri pauses it and it picks up again afterwards; audio you start in another app leaves it paused. Unplugging headphones, or losing a Bluetooth connection, pauses playback rather than switching it to the speaker. Going back to Songs stops it.

Yes, on the song screen. Space plays and pauses. Left arrow, up arrow or Page Up goes back to the top of the loop, or a bar back when you're outside one. Right arrow, down arrow or Page Down moves a bar on. The keys do nothing while you're typing or a sheet is open.

Speed runs from 40% to 120% in steps of five; drag the thin bar under the speed for anything in between. Pitch is separate and runs twelve semitones either way, so the key moves and the speed does not, or the other way round. The count-in is none, one, two or four bars, and the speed a song opens at is a default, both in Settings; the count-in is in a song's ⋯ menu too.

Turn it on in the loop editor and the loop gets faster as you repeat it: a step of a few percent every so many repeats, until it reaches full speed, where it stays. A loop saved at 70% with a 5% step every two repeats is at 100% after twelve. The editor works the sum out for you.

Add at playhead drops a marker on the current bar; tap a marker to jump back to it, and press and hold to rename it, move it to the playhead or delete it. Notes are a free text box at the foot of each song. A marker cannot carry its own note yet.

Barline keeps its own copy of each imported file in the app's private storage, so the song keeps working if you move or delete the original. The copy is the same size as the file, so a four-minute WAV takes around 40 MB and an MP3 a tenth of that. Deleting a song from the library deletes its copy. The copies are left out of iCloud and computer backups, so keep your originals; maps, loops, markers and notes are backed up as usual. Nothing is uploaded and there is no account; the privacy page has the detail.

Barline's copies of your audio are left out of iPhone backups, so a restored or new iPhone gets every song, loop, marker and note back without the sound. Import the original files again from Songs, or open a song and tap Find the audio file. Each song plays again with its loops. Bringing the audio back from Songs doesn't need the subscription; playing the song does. Only the identical file is accepted, so use the copy you imported.

Swipe a song to the left in the library. Press and hold a saved loop for Edit and Delete, or use Delete loop at the foot of the loop editor, which asks you to confirm. Press and hold a marker to delete it.

An iPhone running iOS 27 or later; the on-device music analysis it depends on arrived with iOS 27. Barline is iPhone-only and portrait-only. The song screen is always dark, for reading on a music stand, as are the welcome screens and Correct the downbeat; everything else follows Light and Dark Mode.

Delete the app: that removes every song copy, every map and every loop, marker and note from the phone. We hold nothing from the app, so there is nothing to ask us for. An iCloud or computer backup of your phone is yours to manage in Settings.