Last updated: August 2026
Watch Something collects anonymous usage data to improve the experience. This includes which features are used, films swiped on and selected, slider preferences, streaming platform availability at the time of selection, swipe position within a deck, session completion and abandonment patterns, and button interactions. Each session is assigned a random session ID so we can understand the full flow from vibe selection to film pick. This data is tied to a randomly generated device identifier, not to your name, email, or any personally identifiable information. Each event also includes your browser's timezone and locale setting to help us understand regional usage patterns. We do not require accounts or logins. An optional account is available if you want your saved films to follow you across devices (see below).
You can use Watch Something fully without an account. If you choose to sign in, we use passwordless "magic link" login: you give us your email address, and we email you a sign-in link, and we never store a password. When you have an account, we additionally store, linked to it:
That's it: film titles, years, and related film metadata. Your email address is used only for sign-in links and is never used for marketing or shared with anyone. You can request deletion of your account and all associated data at any time (see Your Rights below).
The optional Letterboxd import reads the export zip (or individual CSV files) you download yourself from Letterboxd and choose to upload. The files are unpacked and processed entirely in your browser; only the film titles, years, watched/watchlist status, and ratings they contain are saved to your account. We do not connect to Letterboxd, access your Letterboxd account, or receive anything beyond the files you select.
We use your browser's local storage to save:
This data is stored locally on your device. The anonymous device identifier and usage events are transmitted to our analytics service as described below. All local storage can be cleared at any time through your browser settings.
Anthropic (Claude API): We use Anthropic's Claude API to generate film recommendations based on your vibe selections and genre preferences. The data sent includes your slider positions, selected genres and eras, and previously shown film titles. No personally identifiable information is included in these requests.
TMDb: We use The Movie Database API to retrieve film posters, descriptions, and streaming availability. Your interactions with these requests are not personally identifiable.
Supabase: We use Supabase for real-time multi-device room functionality, anonymous event logging, and, if you create an account, authentication and storage of your saved film data. Room data is used only during active sessions and may be periodically cleaned up. Analytics events contain only the anonymous device identifier, event type, and associated metadata. Account data (your email and saved films) is protected so that only you can access your own records.
Resend: If you sign in, our email delivery provider sends your sign-in link. Your email address is processed solely to deliver that email, never for marketing.
Amazon Associates: Watch Something is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. When you click a rental or purchase link routed through Amazon, we may earn a small commission at no additional cost to you.
Names entered during multi-device sessions are used only for the duration of that session and are stored temporarily in Supabase to coordinate gameplay between devices. Room data, including player names, preferences, and swipe results, is not used after the session ends and may be periodically cleaned up. Names are never used for analytics, marketing, or any purpose beyond the active session. One exception: if you have an account, your past picks are saved to it so they follow you across devices, and each saved pick records the film, the date, and the first names entered for that session (e.g. who you watched with). You can request deletion of this at any time (see Your Rights).
Watch Something does not knowingly collect personal information from children under 13, and accounts are intended for users 13 and older. The family-friendly mode is designed to filter content and is intended to be operated by a parent or guardian. Without an account, no personal data is collected from any user regardless of age.
We may share aggregate, anonymized analytics with partners, for example reports showing genre popularity by time of day, or how often films on a given platform are selected. These reports contain no individual-level data and cannot identify any user. We do not sell, rent, or share individual device-level data with third parties.
Anonymous analytics events are retained indefinitely to help us understand how the app is used and to improve recommendations. Data is analyzed in aggregate. The film vibes database (aggregate scoring data) is retained indefinitely as it contains no personal information. Account data (your email and saved films) is retained until you ask us to delete it.
If you have an account, email us from your account address to request deletion of your account and everything linked to it (email, seen films, watchlist, ratings, past picks) and we will delete it all. You can also sign out at any time; the app keeps working with device-local data only.
For anonymous data: because we use randomly generated device identifiers rather than personal identifiers, we cannot look up "your" data by name or email. However, if you are a California resident under the CCPA or located in the European Economic Area under GDPR, you may request deletion of data associated with your device ID. Contact us with the device ID from your browser's local storage (key: ws_device_id) and we will delete all associated event records.
You can clear all locally stored data at any time through your browser settings (clearing site data for watchsomething.app). This will reset your viewing history, display name, and device identifier. A new anonymous identifier will be generated on your next visit.
We may update this policy from time to time. Material changes will be reflected in the "Last updated" date above.
Have questions about this policy or the app? Reach out anytime.