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Privacy &
How It Works

Last updated: 3 July 2026

The short version: HandScenes uses your webcam to track your hand and body movements, and — in the sound toys — your microphone to react to music or drumming, entirely inside your browser, on your own device. Your camera video, your audio, and anything detected from them are never recorded, saved, or sent to us or anyone else. The only thing we measure is anonymous, cookieless visitor counts.

The camera

When you press start, your browser asks permission to use your camera. We use that feed only to detect where your hands (or, in the body-tracked games, your whole body pose) are, in real time, so the visual effects can react to them. The processing runs locally using Google's MediaPipe library and your device's graphics hardware. The video stream stays in your browser tab and is discarded as it plays — there is no recording feature, no upload, and no server that ever sees your camera.

The microphone

Some toys (for example Water Ink and Hand Beats) ask for microphone access instead of — or as well as — the camera. The audio is analysed live in your browser for loudness and frequency (so a kick drum can be told apart from a cymbal) and the visuals react to that. The sound itself is never recorded, stored, or uploaded, and it is not played back through your speakers. The analysis result is a handful of numbers that exist for a fraction of a second and are then gone.

What we collect

We use Vercel Web Analytics to count visits — aggregate, privacy-friendly numbers such as page views, rough location (country) and browser/device type, plus the site that referred you. We also log anonymous, aggregate usage events — for example which scene or filter was picked — so we can see which features are popular. It uses no cookies, stores no personal data, builds no profile of you, and does not track you across other websites. We have no accounts and no advertising. This analytics never sees your camera or your hand or body movements — those stay on your device, as described above.

The landing page shows an all-time visitor count. That is a single number kept in a hosted key-value database (Upstash) which our own server reads and increments on your behalf; your browser only ever talks to our domain. It holds no personal data and is not tied to you. Your browser also stores a small local flag so a repeat visit from the same browser is not counted twice.

Third parties

The app and everything it needs (3D library, hand/body-tracking models, fonts, and the analytics script) is served from our own host, Vercel, on this domain — not from any outside service. Like any website, Vercel's servers automatically receive standard request information — your IP address, browser type, and the time of the request — to deliver the page, and Vercel also provides the privacy-friendly Web Analytics described above. See Vercel's privacy policy. We do not load scripts, fonts, or trackers from any other third-party service.

Recording your own videos

HandScenes does not record anything. If you screen-record yourself using it, that recording is created and stored by you, on your device or in whatever tool you chose — we are not involved and never receive it.

Children

HandScenes does not knowingly collect any personal information from anyone, including children.

Your rights

Because we don't collect or store personal data, there is nothing for us to access, correct, or delete on your behalf. You can revoke camera and microphone access at any time from your browser's site settings.

Changes

If we ever add features that change how data is handled (for example analytics or a built-in recorder), we will update this page before doing so.

Credits

The Solar System explorer uses planet and Sun surface maps by Solar System Scope, built from NASA imagery and licensed CC BY 4.0. Planet positions are computed from NASA JPL's published orbital elements. These files are served from our own host; the scene makes no outside requests.

Contact

Questions? Email bloortechnologies@gmail.com.