Privacy Policy

Last updated: July 30, 2026 (replaces the policy effective August 19, 2024)

The Short Version

BTR AMP was designed so that we never see your data:

No account, no sign-up. BTR AMP doesn’t require an account, and we don’t operate servers that receive your app data. Your music, playlists, settings, and listening history stay on your device.
Your cloud connections are yours. When you connect a cloud service (Google Drive, Dropbox, OneDrive, Box, pCloud) or your own server, the app talks directly to that service from your device. Credentials and access tokens are stored in your device’s Keychain — they are never sent to BTR Labs. The same goes for optional Last.fm scrobbling: if you turn it on, your device sends your plays to your Last.fm account — never to us.
We can’t see your music library. We never know what you own or what you’re listening to. At most, anonymous statistics tell us which audio formats (like MP3, FLAC, or DSD) get played — never artists, albums, or song names. We think that’s how a music player should work.
What we do have: support emails you send us, opt-in crash diagnostics that Apple shares in anonymous, aggregated form, anonymous usage statistics from Firebase Analytics (which features get used and which audio formats are played — never the artists, albums, or songs), and consent-based analytics on this website. That’s the list.

The formal policy below covers the same ground in more detail. If anything here ever seems to conflict with it, the formal policy controls.

The Formal Policy

This Privacy Policy describes how Beyond The Rapids Laboratories LLC (“BTR Labs,” “we,” “us,” or “our”) handles information in connection with the BTR AMP application for iPhone and iPad (the “App”) and our website at www.btrlabs.com (the “Website”). Please read it carefully. If you do not agree with it, please do not use the App or the Website.

1. Who We Are

Beyond The Rapids Laboratories LLC, based in Hilton Head Island, South Carolina, USA, is the developer of BTR AMP and the operator of this Website. For the purposes of the EU and UK General Data Protection Regulation (GDPR), BTR Labs is the data controller for the limited personal data described in this policy. You can reach us at support@btrlabs.com.

2. What the App Collects — and What It Doesn’t

Nothing is sent to BTR Labs. The App does not require an account, and none of your app configuration, files, music, playlists, or listening data is sent to any server owned or controlled by BTR Labs. Everything the App manages lives on your device.

Your music. All audio content in the App is provided by you, and we have no access to it. The only related information we collect is the anonymous format-usage statistics described under “In-app analytics” below — which audio formats are played, never the content itself or anything that identifies it.

Cloud storage connections. The App can connect to cloud storage providers — Google Drive, Dropbox, OneDrive, Box, and pCloud — so you can transfer your files to your device. You authorize these connections directly with the provider (via OAuth); the App never sees your password for these services. Upon a successful connection, the App receives an access token, which is stored in your device’s Keychain, a protected secure system storage. All transfers happen directly between your device and the provider. Files you download are saved in the App’s Documents folder on your device, and you can delete them at any time using the App’s file management features or the iOS Files app. You can disconnect a provider at any time in the App (which removes the token from your device), by revoking the App’s access in your account settings with that provider, or by uninstalling the App. The App does not share any data from your cloud storage accounts, and your downloaded files never leave your device.

Personal servers. The App can also connect to an ownCloud, Nextcloud, WebDAV, or personal server (NAS/SMB). For these connections you provide the server address, login, and password, which are stored in your device’s Keychain and used only by the App, on your device, to transfer files from your server. You can delete this connection data at any time in the App or by uninstalling the App. The App does not share any data from your server.

WiFi Drive. The App’s WiFi Drive feature can make the App’s Documents folder available over your local network as a WebDAV server, so you can transfer files to and from your device using other software on the same network (such as a desktop file manager). WiFi Drive is an on-demand feature: it is off by default, runs only while you have turned it on, and stops when you turn it off or leave the App. Transfers happen directly between your device and the connecting device on your local network — nothing passes through BTR Labs or any other outside server.

Last.fm scrobbling. The App can optionally scrobble your listening history to Last.fm. Scrobbling is off by default and runs only if you choose to enable it. You authorize the connection directly with Last.fm (via OAuth); the App never sees your Last.fm password, and the resulting authentication token is stored in your device’s Keychain. When enabled, the App sends track metadata — such as artist, track, and album names and the time of play — directly from your device to your Last.fm account. This information goes to Last.fm, not to BTR Labs; we never receive or store your listening history. You can stop scrobbling at any time by disabling it in the App (which removes the token from your device) or by revoking the App’s access in your Last.fm account settings. Last.fm’s handling of your data is described in its Privacy Policy.

Google Drive and Google user data. When you connect Google Drive, the App uses the OAuth access token and Google’s official APIs to list, download, and manage your files at your direction. The developers of the App do not gain access to any of your personal data from Google Drive. Our use and handling of data obtained from Google APIs strictly comply with the Google API Services User Data Policy, including the Limited Use requirements.

Diagnostics. If you have opted in to sharing diagnostics with app developers on your device (Settings → Privacy & Security → Analytics & Improvements), Apple makes crash reports and aggregated, anonymous usage statistics available to us. This information contains no personal information and no information about your music. We use it to find and fix bugs.

In-app analytics. The App uses Google Firebase Analytics to collect anonymous usage statistics — for example, which features are used, which audio formats (such as MP3, FLAC, or DSD) are played, and on what type of device — so we can understand how the App is used and make it better. This data is keyed to a random app-instance identifier, not to you, and it includes no personal information and nothing that identifies your music: never artist, album, or song names, and never the files themselves. Google processes this data on our behalf as described in Firebase’s privacy documentation.

Purchases. Memberships are purchased through the Apple App Store. Apple processes the transaction; BTR Labs never receives your name, billing address, or payment card details. Apple provides us with aggregated, anonymized sales reporting. Apple’s handling of your purchase data is described in Apple’s Privacy Policy.

3. What We Collect When You Contact Us

If you email us or reach us through our social media channels, we keep your message and our responses in our support system so that we can continue the conversation when you request additional support and follow up to let you know about fixes or features you asked about. We will never sell your contact details or pass them to any other company for their own use.

4. Website Cookies and Analytics

The Website uses Google Analytics cookies so that we can obtain anonymous, aggregated statistics about how the Website is used — which pages are visited and how visitors arrive. We use this to maintain and improve the Website.

These analytics cookies are set only with your consent: when you first visit the Website, you are asked to accept or decline, and no analytics cookies are set unless you accept. You can change or withdraw your choice at any time using the “Cookie preferences” link in the footer, or block cookies entirely in your browser settings.

The App itself sets no cookies and, apart from Firebase Analytics (described in Section 2), contains no third-party advertising or analytics SDKs. We do not serve ads, and we do not engage in interest-based (behavioral) advertising.

5. How We Use Information

We use the limited information described above to:

provide and maintain the App and the Website;
respond to your support requests and follow up on them;
diagnose and fix crashes and technical problems;
understand aggregate usage of the App and the Website so we can improve them; and
comply with legal obligations and enforce our Terms of Service.

Where GDPR applies, our legal bases are: performance of a contract (providing the App and responding to support requests), your consent (Website analytics cookies), and our legitimate interests (fixing bugs, improving the Website, and protecting our legal rights). If we ever need to process personal data for a new purpose, we will update this policy first.

We do not sell, rent, or trade your personal information — full stop. We share information only:

with service providers that process it on our behalf (for example, our email provider hosts our support mailbox, and Google processes App analytics via Firebase and Website analytics via Google Analytics under its Privacy Policy);
when required by law, or when we believe in good faith that disclosure is necessary to comply with a legal obligation, protect our rights, or protect the safety of others; and
in a business transfer — if BTR Labs is involved in a merger, acquisition, or sale of assets, your information may be transferred as part of that transaction, and we will provide notice of any resulting change in ownership or use of your personal information.

7. Data Retention

Support emails are retained for as long as they are useful for providing you support and for a reasonable period afterward, or until you ask us to delete them. Website analytics data is retained per our Google Analytics settings and is aggregated and anonymous. Everything the App stores lives on your device and is deleted when you delete it or uninstall the App.

8. International Transfers

BTR Labs is based in the United States, so if you contact us from outside the US, your support correspondence will be processed in the United States, which may not provide the same data-protection standards as your jurisdiction. We limit what we collect so that this affects as little of your data as possible, and where required we rely on appropriate safeguards for such transfers.

9. Security

The most effective security measure in BTR AMP is architectural: your music, files, and personal data never leave your device unless you direct them to a service you’ve connected (such as a cloud provider or Last.fm), and credentials are stored in Apple’s Keychain. For the little data we do hold (support email), we use reputable providers and commercially reasonable safeguards. No method of transmission or storage is 100% secure, however, and we cannot guarantee absolute security.

Where these laws apply to you, you have the right to request access to, a copy of, correction of, deletion of, or restriction of the processing of your personal data; to object to processing based on legitimate interests; to withdraw consent at any time (for example, via the Website’s “Cookie preferences” link); and to lodge a complaint with your local supervisory authority. Because we hold so little — in most cases only your support correspondence — these requests are typically simple to fulfill: email us at support@btrlabs.com and we will respond within the timeframes required by applicable law.

11. California Privacy Rights

If you are a California resident, the California Consumer Privacy Act (as amended by the CPRA) gives you the right to know what personal information we collect and how we use and disclose it (this policy is that disclosure), to access and receive a copy of it, to correct it, to delete it, and to not be discriminated against for exercising these rights. We do not sell or share your personal information as those terms are defined in California law, and we do not use or disclose sensitive personal information. To exercise any of these rights, email us at support@btrlabs.com with enough information for us to verify your request; you may also use an authorized agent as permitted by law.

12. Children’s Privacy

BTR Labs does not knowingly collect personal information from anyone under the age of 13, or under the applicable minimum age in their jurisdiction. The App requires no account and sends us no data, so in practice the only personal information a child could provide us is a support email. If you are a parent or guardian and believe your child has provided us personal information, contact us at support@btrlabs.com and we will promptly delete it.

13. Third-Party Services

If you choose to connect third-party services within the App, or follow links from the Platform to external sites, those services’ own privacy policies govern their handling of your data, and we have no control over or responsibility for their practices. For the services the App can connect to:

14. Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will update the “Last updated” date above, and for material changes we will provide more prominent notice on the Website or in the App. Your continued use of the App or the Website after changes take effect constitutes acceptance of the updated policy.

15. Contact

Questions about this Privacy Policy or your data? Email us at support@btrlabs.com. Beyond The Rapids Laboratories LLC is based in Hilton Head Island, South Carolina, USA.