Barline Licence Terms
End user licence agreement · Last updated: 23 September 2026
The short version
You may use Barline on your own Apple devices. Every feature works on the first three songs you import, for as long as you like; a fourth asks for Barline Unlimited, £2.99 a month or £19.99 a year, taken by Apple and renewing until you turn it off in your App Store settings. If it lapses, every song you have added stays playable. Import only audio you have the right to use: Barline is a practice tool for your own files, not a way to obtain music. The bars and beats it finds are an analysis, not a transcription, and can be wrong; the app gives you a way to correct them. Play it at a volume that is kind to your ears.
1. This agreement
These terms form an agreement between you and Mirentha Ltd, a company incorporated in England and Wales (company number 17207914), registered office 71–75 Shelton Street, Covent Garden, London, WC2H 9JQ (“we”, “us”). They govern your use of the Barline iPhone application and any updates to it (the “App”). By downloading or using the App you accept these terms; if you do not accept them, do not use the App.
This agreement is between you and us alone, not with Apple. Apple is not responsible for the App or its contents.
2. Your licence
We grant you a personal, non-exclusive, non-transferable, revocable licence to install and use the App on any Apple-branded device that you own or control, as permitted by the App Store Terms of Service. The licence is for your own use, personal or business; it is a licence of the software rather than a sale of it, and we keep all rights we do not expressly grant.
3. The free songs, the subscription and renewal
Three songs are free, for as long as you like, with every feature: loops, speed and pitch, the count-in, the practice ramp, markers, notes and downbeat correction all work on them. There is no free trial; the three songs are the trial, and they do not expire. Importing a fourth song presents the subscription screen.
Barline Unlimited is sold as an auto-renewable subscription: £2.99 per month or £19.99 per year, or the equivalent the App Store displays in your country and currency. The price and the term are shown to you before you confirm. While it runs, the three-song limit is lifted for the Apple Account that bought it.
Apple sells the subscription and takes the payment. Your Apple Account is charged when you confirm the purchase, and again at the start of each renewal period. The subscription renews automatically unless you turn off auto-renew at least 24 hours before the current period ends. You manage and cancel it in your App Store account settings, not in the App: Settings, then your name, then Subscriptions; Manage subscription in the App's settings takes you there. We cannot cancel it for you. It is not set up for Family Sharing. Refunds are requested from Apple at reportaproblem.apple.com; we cannot issue one ourselves. Nothing in these terms affects your statutory rights, including your right to a repair, replacement or refund if the App is faulty, not as described, or not fit for purpose.
Apple records the subscription against your Apple Account rather than against your phone, so on a new or reset iPhone Restore purchases in the App's settings picks it up.
Neither the free limit nor a lapse ever puts anything at risk. Every song you have imported, every loop and marker, and every note stays on your device, on screen and playable, whether or not a subscription is running. If the subscription lapses, the App only stops a further song being added while the library already holds three or more; nothing is deleted, hidden or held back.
4. Your audio, and what you may import
Barline works on audio files you supply. You may only import audio you own or have the right to use in this way: recordings you made, music you have bought as files, lessons or backing tracks you were given for the purpose, and material that is otherwise free for you to use. You are responsible for that right, and for any claim that arises from a file you import. Streamed music from Apple Music, Spotify and similar services is copy-protected and cannot be imported; the App does not attempt to circumvent that protection and must not be used to try.
The App makes a private copy of each imported file in its own storage, on your device, solely so that it can play it; it does not alter your original, does not share the copy, and deletes the copy when you delete the song or the App. Slowing a song down, changing its pitch or looping a passage inside the App is playback of your own copy for your own practice. The App has no export, no sharing and no way to send audio anywhere, and it must not be used to distribute anyone else's recording.
5. Your content
Your library is yours. Loops, markers, notes and downbeat corrections remain your property, and we claim no licence over any of it; we could not use it if we wanted to, since none of it reaches us.
You are also responsible for your own backups. Everything the App holds lives on the one iPhone it was made on, and deleting the App deletes it. An iCloud or computer backup of your phone includes your maps, loops, markers and notes in the ordinary way, but not the App's copies of your audio, which are left out because you already hold the originals; that is Apple's backup, not ours. We hold no copy of anything and cannot restore a library for you.
6. The analysis, and what the App is not
The bars, beats, sections and key the App shows are produced by Apple's on-device music analysis, run once on each song when it is imported. It is an estimate. It can place the bar line on the wrong beat, miss a tempo change, mislabel a key, or divide a song into sections a musician would draw differently; unusual metres, rubato, free-time introductions and live recordings are especially likely to confuse it. The App gives you Correct the downbeat so that you can fix the most common of these yourself, and it snaps loops to the grid it has, right or wrong.
Barline is a practice aid, not a transcription, an analysis you can rely on for any other purpose, or musical instruction. It does not tell you what notes are being played, whether you are playing them correctly, or how to play. What you take from a song, and how you practise it, are yours.
7. Hearing and volume
Repeating a passage at volume through headphones for a long practice session can do lasting harm to your hearing. The App plays at the volume you set on your phone and imposes no limit of its own. Keep the volume moderate, take breaks, and stop if you notice ringing or discomfort. That is your responsibility, not something the App can judge for you.
8. What you may not do
You may not copy, redistribute, rent, lease, sell or sublicense the App; modify it or create derivative works from it; reverse engineer, decompile or disassemble it except to the extent the law expressly permits despite this restriction; remove any proprietary notices; use it to infringe anyone's copyright or to defeat copy protection; or use it in breach of any applicable law or export control. You must also comply with any applicable third-party terms of agreement when using the App.
9. Privacy
The App collects no personal data and sends nothing to us. What it stores, how it reads the file you choose, how background playback works, and its only connection to Apple are set out in the Barline privacy policy, which forms part of these terms.
10. Warranties
The App is provided “as is”. To the fullest extent permitted by law we exclude all implied warranties, including those of satisfactory quality, fitness for a particular purpose and non-infringement, and we do not warrant that the App will be uninterrupted or error-free, that any bar line, beat, section or key it finds will be correct, or that it will analyse any particular file at all.
If the App fails to conform to any warranty that cannot be excluded, you may notify Apple, and Apple may refund the purchase price. To the maximum extent permitted by law, Apple has no other warranty obligation in respect of the App, and any other claim arising from a failure to conform to a warranty is our responsibility.
11. Liability
Nothing in these terms limits our liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for anything else that cannot lawfully be limited. Your statutory rights as a consumer are unaffected.
Subject to that, we are not liable for indirect or consequential loss, or for loss of profit, revenue or data, arising from your use of the App; and our total liability arising out of or in connection with the App is limited to the greater of the amount you paid for it and £50.
12. Support and maintenance
We are solely responsible for support of the App; Apple has no obligation to provide any maintenance or support services. Support is offered by email at [email protected] and through the Barline support page.
13. Third-party notices
The App uses no third-party code. The music analysis, audio playback and lock-screen controls are Apple's own frameworks, supplied as part of iOS. Apple Music and Spotify are trademarks of their respective owners; the App is not affiliated with, endorsed by or connected to either, and mentions them only to say that their streamed tracks cannot be imported.
14. Term and termination
This licence runs until terminated. It ends automatically if you breach these terms, and you may end it at any time by cancelling the subscription and deleting the App. Cancelling stops the next renewal; it does not refund the period you are in, and refunds are Apple's, as set out in section 3. Sections 4, 5, 6, 10, 11, 15 and 16 survive termination.
15. Third-party claims and Apple
We, not Apple, are responsible for addressing any claim by you or a third party relating to the App, including product liability claims, any claim that the App fails to conform to a legal or regulatory requirement, and claims arising under consumer protection, privacy or similar legislation. We are also responsible for investigating, defending, settling and discharging any claim that the App infringes a third party's intellectual property rights.
You represent that you are not located in a country subject to a US Government embargo or designated as a “terrorist supporting” country, and that you are not on any US Government list of prohibited or restricted parties.
Apple and Apple's subsidiaries are third-party beneficiaries of this agreement, and on your acceptance of it Apple has the right to enforce it against you as a third-party beneficiary.
16. Governing law
These terms are governed by the law of England and Wales, and the courts of England and Wales have exclusive jurisdiction. If you are a consumer resident elsewhere in the UK, you may also bring proceedings in your own jurisdiction. If you are a consumer resident outside the UK, nothing in this section deprives you of the protection of any mandatory law of your country of residence, or of your right to bring proceedings in the courts of that country.
17. Contact
Mirentha Ltd, 71–75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom. [email protected], or the contact form.