Privacy

LINX (playlinx.app) is a free daily word-chain puzzle. This page explains what data we collect when you use the public game. We do not require a player account to play. See also our Terms & Conditions.

• Gameplay on your device — progress (e.g. streak, completed tiers) is stored in your browser (local storage) so the game can remember your state.
• Anonymous session ID — a random ID in your browser used to group events from the same visit. It is not your name or email.
• Usage analytics — events such as opening the app, starting a puzzle, completing a tier, using a hint, sharing, or playing LINX EXPRESS. These are sent to our database (Supabase) to improve the game.
• Ratings — if you rate a puzzle or LINX EXPRESS, we store your rating linked to that session and date.
• Profile page— your stats page (/profile) is computed entirely on your device from gameplay already stored in your browser: streaks, solves, play times, badges, and an activity calendar. None of these per-player stats are uploaded. The "where you stand" comparisons use anonymous, aggregated percentiles computed from the usage analytics described above — never your individual data. We record anonymous events when the profile page is opened, when stats are shared, and when the "save my stats" button is tapped.
• Share images — stat and result cards are generated on your device. Nothing is sent anywhere unless you choose to share or download the image yourself.
• Google Analytics — if enabled, Google Analytics 4 receives page views and the same kinds of gameplay events, using cookies and similar technologies. See Google's privacy policy. You can opt out via Google's browser add-on or your browser's privacy settings.
• Vercel Analytics — our host may collect lightweight, aggregated traffic metrics.

We do not ask you to sign in to play. We do not collect your email, phone number, or payment details through the public game. The only time we receive contact details is if you choose to create an optional account (see below).

You can play LINX fully without an account. If we offer accounts and you choose to sign in — with Google or an email magic link — we collect and store:

• Your email address — used to sign you in, to run your account, and to send you messages described in Email and notifications below (including sign-in links if you use email magic link, and game or service updates if you have an account).
• Basic Google profile info — if you sign in with Google, we receive your name, email address, and profile picture from Google. We never see your Google password. See Google's privacy policy for how Google handles the sign-in.
• Your saved game stats — when signed in, the gameplay stats that previously lived only in your browser (streaks, solves, badges, play history) are stored against your account so you can keep them across devices.

LINX ecosystem. Your LINX account is the same identity across LINX products — for example daily puzzles on playlinx.app and the separate NOOX organizer at mynoox.app. Sign in once with Google (or an email magic link) on any product that offers accounts; we use the same authentication provider (Supabase Auth) and tie data to one user id. Game stats, profile progress, and NOOX content stay in separate product stores — signing in on one product does not automatically sign you in on another domain, but it is the same account when you choose to sign in there too.

Authentication is handled by Supabase Auth. You can ask us to delete your account and its saved stats at any time using the contact below; we will remove them within a reasonable period unless we must keep something for legal reasons.

If you create an account, we may contact you at your sign-in email address. When you sign in (including with Google), you agree to our Terms & Conditions, which describe how we may contact account holders.

We may send:

• Account messages — sign-in links, account confirmations, and notices about your saved stats or account status;
• Game and service notifications — for example when new Search boards or daily content is available, reminders related to streaks or standings, or important changes to LINX modes you use;
• Replies — if you write to us about privacy, your account, or the service.

Our lawful basis is performance of a contract (providing the account you signed up for) and, where applicable, legitimate interests (running and improving LINX and keeping players informed about the service). We do not sell your email to third parties for their marketing.

You can opt out of non-essential game and service emails at any time using an unsubscribe link in any email, your account settings when we offer them, or by contacting contact@playlinx.app. Essential account or security messages may still be sent while you have an account.

We use it to run the daily puzzles, measure completion and retention, fix bugs, and improve chains and features; and, if you have an account, to send the emails and notifications described above. Our lawful basis under UK GDPR is legitimate interests (running and improving a free game). For optional accounts, the basis is performance of a contract (providing the account and related messages you agreed to in our terms). Where analytics cookies require consent under UK rules, we rely on your continued use of the site after reading this notice.

Data may be processed by service providers we use to operate the site, including:

• Vercel (hosting)
• Supabase (database, authentication, and analytics storage)
• Google (Analytics and Google sign-in, if you use them)
• OpenAI (optional NOOX AI routing — processes text you submit when that feature is enabled)
• Email delivery providers we use to send account and game notifications (they process your email address and message content only to deliver mail on our instructions)

They act as processors under their own terms and may store data outside the UK.

Analytics and ratings are kept for as long as needed to operate and improve LINX, typically up to several months unless we need them longer for security or legal reasons. You can clear local progress by clearing site data in your browser.

Under UK data protection law you may ask for access, correction, or deletion of personal data we hold about you, and you may object to or ask us to restrict certain processing (including non-essential emails). Because play is mostly anonymous, we may not be able to identify you from a session ID alone — please contact us from the same browser or with as much detail as you can (date, device, what you did, or the email address on your account).

You may complain to the UK Information Commissioner's Office (ico.org.uk).

LINX is not directed at children under 13. If you believe a child has provided personal data, contact us and we will delete it where appropriate.

Privacy questions or requests: contact@playlinx.app. If that address is not yet active, use any contact email published on playlinx.app.

We may update this page. The date at the top shows when it was last revised.

NOOX by LINX (mynoox.app) is a separate product in the LINX ecosystem — a personal organizer where you capture free-form "thoughts" (brain dumps) and link them to your own buckets ("noox": people, places, and projects). It is not part of the playlinx.app games site; it runs on its own domain. This section applies when you use NOOX. Links from playlinx.app to NOOX may redirect you to mynoox.app.

Local by default. Your noox, thoughts, and actions are stored in your browser (local storage) unless you sign in and turn on cloud sync. With cloud sync off, we do not receive your NOOX content on our servers.

Cloud sync (optional). If you sign in with Google (or another method we offer) and enable cloud sync, we store a JSON backup of your NOOX state in your LINX account on Supabase so you can restore it across devices. That data is tied to your account email and protected by row-level security (only your account can read/write your row). You can turn cloud sync off at any time in NOOX settings; existing cloud copies remain until you ask us to delete your account or NOOX data.

AI routing (optional). When enabled, text you capture is sent to OpenAI for smarter noox linking and action extraction (~one API call per thought). When AI routing is off, linking and action extraction stay on your device using local rules. OpenAI acts as a separate processor under OpenAI's privacy policy. We do not control how they handle data beyond our API instructions. Do not put unlawful, highly sensitive, or third-party confidential information into NOOX if you enable AI.

What we do not do with NOOX content. We do not sell your brain dumps. We do not use them to train our own models. We do not mix NOOX content into anonymous puzzle analytics unless you separately trigger a generic page-view or product event (e.g. opening the NOOX app).

Your responsibility. You choose what to store, whether to sync to the cloud, and whether to enable AI. No online service, cloud backup, or AI system is completely secure or error-free. Suggested actions and links may be wrong. You are responsible for verifying anything important and for complying with law and any duties you owe to others.

Deletion. Clear site data in your browser to remove local NOOX data. To remove cloud backups, disable cloud sync and email contact@playlinx.app from your account email asking us to delete your NOOX profile / account data. We will do so within a reasonable period unless we must retain something for legal reasons.

See also the NOOX section in our Terms & Conditions.