KantaNa ("the app", "we", "us") is a collaborative karaoke web app. A host
screen displays a YouTube player; guests join from their phones to search and
queue songs. This policy explains what information the app handles and how.
Information we handle
Display name — the nickname you type when joining a room. It is shown next to songs you add and is kept only in the live room's memory on the server. It is not stored in a database and is discarded when the room ends.
Room codes & song queue — the 4-letter room code, the current song, and the shared queue. These exist only for the life of the room and are not retained afterward.
Search queries — text you type to find songs is sent to the YouTube Data API through our server to return results. Results are cached on our server to reduce repeated lookups. Queries are not linked to your identity.
Local storage — the host screen stores its room code in your browser's local storage so it can reconnect after a refresh. You can clear this at any time via your browser.
We do not require accounts, and we do not collect your email address, password, phone number, or precise location.
Microphone & scoring
On the host screen, if you tap "Start the Party" your browser may ask for
permission to use the device's microphone. This powers the
videoke score: while a song plays, the app listens to the room and analyses
pitch and volume entirely within your browser to produce a
number for fun.
The audio is never recorded, stored, or transmitted — it is processed live on your device and discarded frame by frame. Only the final score (a number) is shared with the phones in the room.
Granting the microphone is optional. If you decline, the app simply shows a simulated score and everything else works as normal.
You can revoke the microphone permission at any time through your browser's site settings.
Cookies and third-party services
The app relies on third parties that may set their own cookies and process data under their own privacy policies:
YouTube / Google — video plays through the official YouTube IFrame Player. Your use of the embedded player is subject to the Google Privacy Policy and the YouTube Terms of Service.
Google Analytics — we use Google Analytics (GA4) to understand aggregate, anonymous usage — such as page views and which features are used — so we can improve the app. It may set cookies and process data under the Google Privacy Policy. We do not use it to identify you personally.
Consent (EEA, UK & Switzerland)
Where required, visitors in the European Economic Area, United Kingdom, and
Switzerland are shown a consent message (via Google's certified consent
management platform) before personalized ads are served. You may consent,
decline, or manage your choices there, and you can change your selection at
any time.
Server logs
Our server may keep standard technical logs (such as IP address and request
time) for security and to operate the service. These are not used to build
advertising profiles.
Children
KantaNa is a general-audience app and is not directed to children under 13.
We do not knowingly collect personal information from children.
Your choices
Don't enter a real name when joining — any nickname works.
Manage or reject ad personalization via the consent message or Google Ads Settings.
Clear cookies and local storage through your browser settings.
Changes to this policy
We may update this policy from time to time. Material changes will be reflected by the "Last updated" date above.