Last updated: August 2026
numble is published by Apex Enterprise Solutions Ltd ("we", "our", or "us"), a company registered in England and Wales under company number 08735516, with its registered office at 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ. We are the data controller for the personal data described below. This policy explains what data we collect, why, and your rights over it. By using numble you agree to this policy.
Guest play: numble signs you in anonymously the first time you open it, so that scores have somewhere to belong before you decide whether to register. This creates an identifier held by Firebase Authentication (Google LLC). It is not linked to your name or email address, we cannot tell who you are from it, and anonymous records that go 30 days without being used are deleted automatically. If you later register, that same record becomes your account rather than a second one being created.
Account data (if you register): email address and display name, stored in Firebase Authentication (Google LLC).
Your display name is published on the leaderboards alongside your scores, where anyone using numble can see it. It is the only account data other players can see. Your email address is never shown, and is never used to create your display name.
Game data: puzzle scores, completion times, and hint counts, stored in Cloud Firestore (Google LLC) and locally on your device.
Advertising data: if you consent on iOS, or by default on Android, Google AdMob may collect device identifiers and usage data to serve contextual advertisements. We have configured AdMob to serve G-rated content only.
Crash and performance data: released versions of numble use Firebase Crashlytics (Google LLC), which reports crashes and errors together with your device model, operating system version and what the app was doing at the time. It carries no account identifier, so it is not linked to you, and it is switched off entirely in development and test builds.
Beyond the advertising data described above, numble contains no analytics. We do not record which levels you play, how long you stay, or what you tap.
The website is counted; the game is not. Pages on playnumble.app, including the frame around the browser version, record a page view through Cloudflare Web Analytics. It sets no cookies, stores nothing on your device, and creates no identifier that could follow you between visits or between sites. So we can see that a page was opened, but never who opened it or whether it was you again. The game itself contains no analytics of any kind, in the browser or on either app store.
Links you share from numble carry a short tag naming the screen they came from, such as ?from=daily. It identifies a screen, never a person: two players sharing the same puzzle produce identical links.
We do not sell your personal data to third parties.
Your data is retained until you delete your account. Deleting your account removes your Firebase Auth record, all Firestore scores, and all locally cached progress on this device. Anonymised aggregate statistics may be retained.
Anonymous guest records are deleted automatically after 30 days without being used, whether or not you ask us.
You have the right to:
EU/UK residents have additional rights under GDPR, including data portability and the right to lodge a complaint with your local supervisory authority.
California residents have rights under CCPA. We do not sell personal information.
numble is rated 4+ and is suitable for all ages. We do not knowingly collect personal data from children under 13 without verifiable parental consent. If you believe a child has provided us with personal information, please contact us and we will delete it promptly.
Advertising in numble is configured to serve G-rated content only in compliance with COPPA.
numble uses the following third-party services, each with their own privacy policies:
Google's privacy policy: https://policies.google.com/privacy
Leaderboard data is stored in Cloud Firestore with security rules restricting each user to writing and deleting only their own records. Passwords are hashed by Firebase Authentication and are never stored by us. Local progress is stored in platform-protected app storage.
numble uses Firebase App Check, which asks Google Play Integrity on Android or DeviceCheck on iOS to confirm that a request came from a genuine copy of the app. It examines the app and the device, not you, and it exists to stop the leaderboard being written to by anything other than numble itself.
We may update this policy from time to time. Material changes will be communicated in-app. Continued use of numble after changes constitutes acceptance of the updated policy.
numble is published by Apex Enterprise Solutions Ltd, registered in England and Wales, company number 08735516. For privacy questions or data requests, including access, correction, deletion or objection, contact us at:
We aim to respond to all requests within 30 days.