Privacy Policy
1. Who we are
Music Stacks is published by Denim Dog LLC, a Kansas limited liability company.
2. How Music Stacks works with Apple Music
Music Stacks is an Apple Music client that runs entirely on your device.
- All library reads and writes happen on your device and are sent directly to Apple's servers through the official MusicKit framework over encrypted HTTPS.
- Your Apple Music library data (songs, playlists, listening history) is processed by Music Stacks on your device.
- Denim Dog LLC does not operate servers that handle your music data.
3. What data we (don't) collect
| Source | Type of data | Where it stays |
|---|---|---|
| App runtime | None — Music Stacks runs entirely on-device. No user-identifiable data is transmitted to Denim Dog LLC or any other third party. | Your device |
| Apple diagnostic services | Optional crash logs and anonymous usage stats that iOS may send to Apple if you enable "Share with App Developers." | Apple servers |
We do not collect your music library data or embed any third-party analytics, advertising SDKs, or remote-config services.
4. How we use information
- Diagnostics supplied by Apple help us identify crashes and performance issues.
- Denim Dog LLC does not store, sell, or share personal data.
5. Sharing & stack export
Sharing
Music Stacks lets you share albums, artists, playlists, and songs.
- Share links contain only a resource identifier (e.g., an album or song ID) — no personal information.
- When someone opens a share link, our server fetches metadata from Apple Music to display a preview.
- Our server is hosted on Cloudflare. Cloudflare may collect standard request information (such as IP addresses) in accordance with their Privacy Policy.
Stack export
Music Stacks lets you export your stacks to a file for backup purposes.
- Export files are created locally on your device.
- Denim Dog LLC never receives a copy unless you send it to us directly.
6. Data retention & deletion
- Because we don't collect data, there is nothing for us to retain or delete on our servers.
- Delete Music Stacks to erase all app data from your device.
7. Children's privacy
Music Stacks is not directed to children under 13, and we do not knowingly collect personal data from them.
8. Changes to this policy
We may update this policy from time to time. When we do, we will change the "Effective date" above and post the revised policy at this URL.
We will announce any material changes to our data practices on our website and in app release notes.
9. Contact
Denim Dog LLC
support@denim.dog