BTR AMP
Last updated: July 30, 2026
What We Have To Say…
Beyond The Rapids Laboratories LLC (“BTR Labs,” “we,” “us”) makes BTR AMP, a music player for iPhone and iPad, available through the Apple App Store. We want BTR AMP to be the best music player on iOS, and our pride alone helps ensure you have the best piece of software we can put in your hands.
A few plain-English points before the formal stuff:
- Your music is yours. Every song, album, and playlist in BTR AMP comes from you. BTR Labs is not a streaming service and provides zero content. (We happily use streaming services every day while building BTR AMP — that’s just not the business we’re in.)
- Playback is free; PRO features require a Membership. Anyone can download BTR AMP and play their music. Advanced PRO features — such as DSD playback — require an active Membership, available as an auto-renewing subscription (with a free trial) or as a one-time “Infinity Membership” purchase. Every transaction goes through the Apple App Store; the current list of PRO features and pricing is shown in the App Store and inside BTR AMP.
- No accounts, no tracking of your library. BTR AMP doesn’t require an account, and we don’t see or store your music. See our Privacy Policy for the details.
The rest of this page is the formal agreement. If anything above ever seems to conflict with the formal terms below, the formal terms control — and it means we need to explain ourselves better up here.
The Formal Terms
These Terms of Service (the “Terms”) are a legally binding agreement between you (the “User”) and Beyond The Rapids Laboratories LLC (the “Owner,” “BTR Labs,” “we,” or “us”) governing your use of the BTR AMP application, together with its related features, documentation, and services (collectively, “BTR AMP” or the “App”). By downloading, installing, or using BTR AMP, you agree to these Terms. If you do not agree, do not use the App.
1. About Us
BTR AMP is owned and operated by:
Beyond The Rapids Laboratories LLC Hilton Head Island, South Carolina, USA support@btrlabs.com
2. Eligibility
To use BTR AMP you must be able to enter into a binding contract under the laws that apply to you (or use the App under the supervision of a parent or legal guardian who agrees to these Terms on your behalf). You also represent that:
- you are not located in a country subject to a U.S. Government embargo or designated by the U.S. Government as a “terrorist-supporting” country; and
- you are not listed on any U.S. Government list of prohibited or restricted parties.
3. License
Subject to these Terms, BTR Labs grants you a limited, non-exclusive, non-transferable, revocable license to install and use BTR AMP on Apple-branded devices that you own or control, as permitted by the Apple App Store Terms of Service (including its Usage Rules), solely for your personal, non-commercial use.
You may not (except to the extent applicable law expressly permits):
- copy, modify, distribute, sell, rent, lease, or sublicense the App or any part of it;
- reverse engineer, decompile, or disassemble the App, or attempt to derive its source code;
- circumvent, disable, or interfere with the App’s licensing, Membership, or security features; or
- use the App in any way that violates applicable law or infringes the rights of others.
4. Your Music
All audio content played in BTR AMP (your “Music”) is provided by you. BTR Labs does not supply, license, host, stream, or distribute any music, and has no access to your Music, which remains on your device. You are solely responsible for your Music and represent that you have the legal right to possess and play it. BTR Labs claims no ownership of, and acquires no rights to, your Music.
If you believe any content accessible through BTR AMP is objectionable or infringing, contact us at support@btrlabs.com. We will review reports promptly, and objectionable content will be removed (and the responsible user barred from the service) within 24 hours of a substantiated report.
5. Memberships and Payment
Free features and Memberships. BTR AMP’s core features, including music playback, are free to use. An active Membership is required to use the App’s advanced PRO features (such as DSD playback); the current list of PRO features is shown in the Apple App Store and inside BTR AMP. Memberships are offered as:
- auto-renewing subscriptions (billed weekly, monthly, or yearly), which may include a free trial period; and
- an “Infinity Membership” — a single, one-time purchase with no recurring charges.
Current pricing is displayed in the Apple App Store and inside BTR AMP. Prices may change, but changes will never apply retroactively to amounts you have already paid.
Billing through Apple. All purchases are processed by Apple through your Apple Account. Apple’s own terms and conditions apply to the transaction and, with respect to billing and payment, prevail over these Terms.
Auto-renewal and cancellation. Subscriptions renew automatically for successive periods of the same length unless you cancel at least 24 hours before the end of the current period. Apple charges the renewal fee to your Apple Account within 24 hours before the current period ends. You can manage or cancel your subscription at any time in your Apple Account settings (Settings → your name → Subscriptions on your device). Cancelling stops future renewals; you keep access for the period already paid.
Free trials. If a subscription includes a free trial, the trial converts to a paid subscription at the end of the trial period unless you cancel at least 24 hours before the trial ends. Free trials are one per user unless we state otherwise, and we may modify or withdraw trial offers at any time.
Refunds. Because purchases are processed by Apple, refund requests are handled by Apple under its refund policies. You can request a refund at reportaproblem.apple.com. Except where required by law (or by Apple’s policies), payments are non-refundable.
6. Right of Withdrawal (EU and UK Consumers)
If you are a consumer in the European Union or the United Kingdom, you have the right to withdraw from a purchase within 14 days of concluding the contract, without giving any reason. Because all purchases are processed exclusively by Apple, and BTR Labs has no ability to issue App Store refunds, this right must be exercised by submitting a refund request directly to Apple at reportaproblem.apple.com. If you request that a subscription begin during the withdrawal period and then withdraw, you may be charged a proportionate amount for the service provided up to the time of withdrawal. Reimbursements are made within 14 days using the same means of payment you used, at no cost to you. Nothing in these Terms limits any rights you have under mandatory consumer-protection law.
7. Acceptable Use
You agree to use BTR AMP only for lawful purposes and in accordance with these Terms. We may deny or suspend access to the App, terminate this agreement, and/or report misconduct to the competent authorities if you violate applicable law, infringe the rights of third parties, or materially harm our legitimate interests.
8. Intellectual Property
BTR AMP — including its software, design, interfaces, trademarks (including “BTR AMP” and “BTR Labs”), logos, and documentation — is owned by BTR Labs or its licensors and is protected by copyright, trademark, and other intellectual-property laws. Except for the limited license in Section 3, no rights in the App are granted to you. If you send us feedback or suggestions, you grant us a perpetual, worldwide, royalty-free right to use them without restriction or compensation.
9. Changes to the App and the Service
We are continuously improving BTR AMP. We may add, change, or remove features, and we may interrupt the service for maintenance, updates, or other changes, informing users where appropriate. The App may occasionally be unavailable for reasons outside our reasonable control (force-majeure events such as infrastructure failures or outages). If we discontinue BTR AMP entirely, we will provide reasonable advance notice where practicable.
10. Disclaimer of Warranties
BTR AMP is provided “as is” and “as available.” To the maximum extent permitted by applicable law, BTR Labs disclaims all warranties, express or implied, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the App will be uninterrupted, error-free, or free of harmful components, or that it will meet your requirements. Some jurisdictions do not allow the exclusion of implied warranties, so some of the above may not apply to you.
Australian consumers: where liability cannot be excluded under the Australian Consumer Law, our liability is limited, at our option, to re-supplying the service or paying the cost of having it re-supplied.
11. Limitation of Liability
To the maximum extent permitted by applicable law, BTR Labs will not be liable for any indirect, incidental, special, consequential, punitive, or exemplary damages — including loss of data, loss of profits, or loss of use — arising out of or relating to the App or these Terms. To the same extent, BTR Labs’ total aggregate liability will not exceed the amounts you paid to BTR Labs (through Apple) in the 12 months preceding the event giving rise to the claim. Nothing in these Terms excludes or limits liability that cannot be excluded or limited under applicable law, including mandatory consumer-protection rights in your jurisdiction.
12. Indemnification
To the extent permitted by applicable law, you agree to indemnify and hold harmless BTR Labs and its members, officers, and agents from any third-party claims, damages, and reasonable expenses (including attorneys’ fees) arising from your culpable use of the App, your violation of these Terms, or your infringement of any third-party right.
13. Apple App Store Terms
Because BTR AMP is distributed through the Apple App Store:
- These Terms are between you and BTR Labs only — not Apple. Apple is not responsible for the App or its content.
- BTR Labs, not Apple, is solely responsible for the App and for its maintenance and support. Apple has no obligation to furnish any maintenance or support for the App.
- In the event the App fails to conform to an applicable warranty, you may notify Apple, and Apple will refund the purchase price of the App to you; to the maximum extent permitted by law, Apple has no other warranty obligation with respect to the App.
- BTR Labs, not Apple, is responsible for addressing any claims relating to the App, including product-liability claims, claims that the App fails to conform to legal or regulatory requirements, and claims under consumer-protection or similar law.
- In the event of a third-party claim that the App infringes intellectual-property rights, BTR Labs, not Apple, is responsible for the investigation, defense, settlement, and discharge of that claim.
- Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.
14. Termination
These Terms apply for as long as you use BTR AMP. You may stop using the App at any time by deleting it (this does not by itself cancel an active subscription — cancel in your Apple Account settings). We may suspend or terminate your access to the App if you materially breach these Terms. Sections that by their nature should survive termination (including Sections 8, 10, 11, 12, 15, and 16) survive.
15. Governing Law and Jurisdiction
These Terms are governed by the laws of the State of South Carolina, USA, without regard to its conflict-of-law rules. Any dispute arising from these Terms is subject to the exclusive jurisdiction of the state and federal courts located in South Carolina — except that if you are a consumer, nothing in this section deprives you of the protection of mandatory law, or of the right to bring proceedings in the courts of your place of habitual residence where that right is granted by law.
16. Dispute Resolution
Talk to us first — most issues can be resolved quickly and amicably. Send a description of your complaint to support@btrlabs.com; we will process complaints and respond within 21 days of receipt. This informal process is voluntary and does not limit your right to pursue any legal remedy available to you.
17. Changes to These Terms
We may update these Terms from time to time. If we make material changes, we will provide notice by appropriate means — for example, a notice on this page or in the App — and update the “Last updated” date above. Changes take effect prospectively. Your continued use of BTR AMP after changes take effect constitutes acceptance of the updated Terms. If you do not agree, stop using the App and cancel any active subscription.
18. General
- Severability. If any provision of these Terms is held invalid or unenforceable, it will be reformed to the minimum extent necessary to make it enforceable; if it cannot be reformed, it will be severed, and the remaining provisions will remain in full force.
- Assignment. We may assign or transfer our rights and obligations under these Terms in connection with a merger, acquisition, sale of assets, or by operation of law. You may not assign your rights or obligations without our prior written consent.
- No waiver. Our failure to enforce any provision of these Terms is not a waiver of that provision or of our right to enforce it later.
- Entire agreement. These Terms, together with the Privacy Policy and any applicable Apple terms, constitute the entire agreement between you and BTR Labs regarding BTR AMP.
19. Contact
Questions about these Terms? Email us at support@btrlabs.com. Beyond The Rapids Laboratories LLC is based in Hilton Head Island, South Carolina, USA.