The short version
OhmSplit collects no data. None.
No analytics. No telemetry. No account. No personal data. No usage metrics. No error beacons. No advertising IDs. No fingerprinting. No crash reports. No data of any kind is collected, stored, transmitted, or shared by OhmSplit about you, your device, or your activity.
Everything OhmSplit does — stem separation, preview, and export — runs entirely on your Mac, on-device, using the audio-separator runtime and locally-stored open-weights models (HT-Demucs and Ultimate Vocal Remover). There is no cloud component. There is no server. There is no OhmSplit account.
What we don't have, and therefore never see
Because OhmSplit has no server-side component, the following do not exist anywhere in our infrastructure (and our infrastructure consists of: nothing):
- Your name, email, phone, or address.
- Your IP address, device identifier, MAC address, or any other hardware fingerprint.
- The audio you drop in, the stems OhmSplit separates, or any file you export.
- The contents of your Documents, Downloads, Desktop, or any other folder.
- Session timing, feature usage, button clicks, or any other behavioural data.
- Crash reports. OhmSplit does not implement a crash-reporting SDK.
We never see any of this because none of it is ever sent. The app does not phone home, ever.
Outbound traffic you initiate
Three classes of outbound network traffic can originate from your Mac while OhmSplit is running. None of them go to OhmSplit. All of them are user-initiated:
- Model weight downloads. The first time you separate a track, OhmSplit downloads the relevant stem-separation checkpoint from public open-weights repositories — primarily Hugging Face. The download is anonymous by default; no token, account, or registration is required. Once the weights are on disk, every separation after that is fully offline.
- Mac App Store updates.When Apple ships an OhmSplit update, the Mac App Store delivers it. This traffic is between your Mac and Apple's servers, governed by Apple's privacy policy. OhmSplit is not involved.
- Links you click. If you click an external link inside the app (for example, opening this privacy policy), your default browser handles the request. OhmSplit is not involved.
On-device data you create
The track you import, the stems OhmSplit separates, and your local preferences live on your disk under ~/Library/Containers/com.silosystems.ohmsplit/Data/Library/Application Support/OhmSplit/ (plus any folder you explicitly choose to export to). They are yours. We do not have access to them. Deleting OhmSplit removes the app; your work remains under its container until you delete it manually.
Children's privacy
OhmSplit is rated 4+ on the Mac App Store. Because no personal data is collected from any user, no special treatment is required for users under 13. Same policy applies regardless of age: nothing collected.
Third-party services
OhmSplit uses these open-source components and public services. None of them receive any data about you from OhmSplit:
- HT-Demucs / Demucs (open-weights source-separation models, MIT) — runs locally.
- Ultimate Vocal Remover models (stem separation) — run locally.
- audio-separator (the maintained UVR runtime) — runs locally.
- Hugging Face Hub — contacted only when you separate a track for the first time and the weights are downloaded.
Changes
If we ever materially change how OhmSplit handles data — for example, if a future version of the app ever begins to collect anything at all — we will publish an updated version of this page, announce the change prominently in the release notes, and require explicit consent in-app before any new collection begins. The effective date at the top of this document reflects the current policy.
The current policy is: nothing is collected.
Contact
Questions about this policy: privacy@ohmsplit.app
For non-private inquiries you can also open an issue at github.com/flowmar47/OhmSplit.