Purpose
Handball Studio is a video-analysis extension for tagging handball actions, managing teams and playlists, and exporting match reports. It runs in the current tab only after the user clicks the extension icon.
Data stored on the device
Team settings, player names, timestamps, actions, configurations and playlists are stored in the browser’s private extension storage. Handball Studio does not read or collect the user’s general browsing history.
Optional Cloudflare sharing
After explicit confirmation, “Share with players” encrypts a limited playlist copy on the user’s device with AES-256-GCM, then sends the ciphertext to Cloudflare Workers and D1. The encrypted content can include the playlist title, team names and colors, players linked to selected sequences, actions, timestamps and the public HTTPS reference of the hosted video.
Retention and security
New shared links expire after 30 days by default and may be revoked earlier from the extension. Access tokens, installation tokens and licence codes are stored by the service only as cryptographic hashes. Customer matching uses a keyed pseudonymous identifier derived from the normalized account email rather than storing that email in the licensing database. To enforce device limits across Chrome and Edge, the service records the store and browser family, extension version, installation timestamps and the public half of an installation-specific signing key. It does not collect a hardware serial number or the private signing key. Each encrypted share is assigned to the authenticated installation that created it, and owner checks are enforced for listing and revocation. Expired records and sessions are removed automatically. A non-reversible network-address fingerprint may be retained temporarily to prevent abuse. Cloudflare may process technical logs required to operate and secure the service.
Limited use
Data is used only to provide, secure and maintain the features described above. It is not sold or used for advertising, profiling, credit assessment or unrelated purposes. Handball Studio follows the applicable Chrome Web Store and Microsoft Edge Add-ons data-use requirements.
User control
Users can delete local analyses, revoke a shared link, clear the extension’s data or uninstall the extension. Anyone holding the complete public share link, including its decryption key, can view that playlist until the link is revoked or expires. Losing the link means the encrypted content cannot be recovered by the service.
Beta contact
During the closed beta, use the same channel through which you received the extension, or visit the support page. A dedicated professional email address will be published before commercial release.