Legal
Privacy Policy
Lumoi is a desktop music visualizer that turns the sound playing on your computer into real-time visuals. This policy explains what the app does and does not do with your information.
Data we collect
None. Lumoi does not collect, transmit, or share any personal data. There are no user accounts, no analytics, no advertising, and no tracking of any kind.
Audio
Lumoi listens to the sound your computer is already playing. On macOS 14.4 and later it captures system audio directly, and macOS asks once for permission to record audio; on Windows it uses the system's loopback capture. On older macOS, or if you prefer, it can read a loopback device you choose instead, such as BlackHole or VB-CABLE, which the operating system treats as a microphone input. Either way the audio is analyzed live on your device to drive the visuals — it is never recorded, saved, or sent anywhere.
Data stored on your device
The app saves a small amount of information locally on your device only, such as your settings and any presets you create. It never leaves your computer and is removed when you uninstall the app.
Network and permissions
Lumoi performs all processing on-device and makes no network requests in normal use. It does not access your location, contacts, camera, photos, or files.
This website
This policy is about the app. The website at lumoi.nurmelleben.com is separate, and handles a little data of its own:
- Feedback. If you send a message through the feedback form, your message — and your email address, if you give one — is delivered to our inbox by Web3Forms, a form-delivery service, and is used only to read and reply to it.
- Page views. Cloudflare, which hosts the site, measures page views with Cloudflare Web Analytics, which does not use cookies. Cloudflare may set security cookies that tell people apart from automated traffic; they are not used for advertising.
Children
Lumoi is suitable for all ages and collects no data from anyone, including children.
Changes
If this policy ever changes, the updated version will be posted at this URL with a new "last updated" date.
Contact
Questions about this policy: privacy@nurmelleben.com.
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