Privacy Policy

Android game “Lexicomancy” (fr.brains2dev.lexicomancie)

Last updated: November 9, 2026 · Lire en français

1. Who is responsible?

Publisher

Afaf AIT HAMOU, sole proprietorship (entrepreneur individuel, EI), trading as Brains2Dev

SIREN

992 944 199

Address

13 rue des Murets, 59116 Houplines, France

Contact

contact@brains2dev.fr

Brains2Dev is the controller of the usage measurement data and crash reports (section 4), processed by Google on its behalf. For advertising, Google acts as an independent controller (section 3). Brains2Dev never receives what you do in the game in a form that identifies you.

2. What stays on your phone

The game works without an account and without a connection. It only stores, in its private storage on your phone:

• your progress: climbs played, scores, words played, Grimoire (relics and feats), unlocked themes and bags, daily climb streak, statistics;
• your settings: language, sound and vibration, music, reminder, usage measurement outside Europe;
• the “Remove ads” purchase, if any, so that it keeps working offline;
• technical advertising information: date of first use, number and time of full-screen ads, to respect their limits.

This data is sent neither to Brains2Dev nor to anyone else. The daily climb is the same for all players of a language because it is computed on the phone from the date: no leaderboard is kept on a server.

Android backup. If you turned it on, Android may copy the game’s data into your Google account backup, to restore it on a new phone. This service is provided by Google and controlled in Android’s settings.

Erasing. Uninstalling the game, or “Clear storage” in Android’s settings (Apps › Lexicomancy › Storage), erases all its data from the phone, progress included.

3. Advertising: Google AdMob

The game is free and funded by ads served by Google AdMob (Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland, for Europe; Google LLC elsewhere). It shows:

• a banner at the bottom of menus and at the top of the shop, never while you play a floor;
• at most one full-screen ad after a guardian or at the end of a climb, within limits (none on the day of installation, a minimum interval between two ads, a daily maximum);
• videos you choose to watch to get a bonus (second chance, new hand, extra relic, theme): never forced.

Your consent

On first launch, before any ad request, the game shows Google’s consent message, compliant with the IAB Europe Transparency and Consent Framework (TCF) where required. You can accept all, refuse all, or choose purposes and partners. Until you answer, no ad is requested. You can change your mind at any time: “Settings › Privacy”.

If you refuse, the game works the same way. Google may then show non-personalized or limited ads.

Data collected by Google

Google’s advertising SDK in the game may collect, according to your choices: the Android advertising ID and app-specific identifiers; your IP address, from which Google infers an approximate location; technical information about the phone and the game (model, Android version, language, game version); interactions with ads (impressions, taps) and diagnostics.

This data is used to serve and measure ads, cap their frequency, prevent fraud and, with your consent, personalize ads. Brains2Dev receives aggregate statistics from Google (impressions, revenue); because the AdMob account is linked to Firebase, the revenue of each ad shown joins the usage measurement described in section 4, without identifying you.

Google may process this data outside the European Union, notably in the United States, under the EU–US Data Privacy Framework and the European Commission’s standard contractual clauses. Learn more: how Google uses information from apps that use its services, Google Privacy Policy, My Ad Center.

You can reset or delete your phone’s advertising ID in Android’s settings (Privacy › Ads, or Google › Ads, depending on the model).

4. Usage measurement and crash reports

To improve the game (difficulty of floors and guardians, words wrongly refused, length of climbs, effect of ads) and fix bugs, Brains2Dev uses Google Analytics for Firebase and Firebase Crashlytics (Google Ireland Limited) as processors.

• In Europe (European Economic Area, United Kingdom, Switzerland): they only run if you accept it in the consent message (“Store and/or access information on a device” and “Measure content performance”). Otherwise, nothing is sent.
• Elsewhere: they are on by default, and you can turn them off at any time: “Settings › Usage measurement (outside Europe)”.

Data sent, linked to a random identifier created by the game (not to your name, your Google account or your advertising ID):

• game events: start and end of a climb, floors cleared, video offers and their outcome, full-screen ads shown or skipped, Grimoire unlocks, result sharing, and words refused by the dictionary (made of the game’s letters: there is no free text input);
• the game language, the number of climbs (in ranges) and whether “Remove ads” was purchased;
• technical information: model and Android version, game version, country inferred from the IP address, usage time;
• if the game crashes: a technical report (program state at the time of the crash, model, Android version, available memory).

This data is not used to identify you or to personalize ads. Google keeps it for up to 14 months for usage measurement and 90 days for crash reports, and may process it outside the European Union as described in section 3. Firebase privacy.

5. Remote settings and updates

Two technical exchanges happen even without consent, because the game needs them to work. They contain nothing about your game or about you:

• Remote settings (Firebase Remote Config, Google): at launch, the game downloads its settings (for example the limits of full-screen ads). The request contains a random installation identifier created by Firebase and technical information (game version, language, country).
• Updates (EAS Update, by Expo, 650 Industries, Inc., United States): at launch, the game asks Expo’s servers whether a fix is available. The request contains the game version, the platform and a random identifier created by the game; as with any connection, the server receives the IP address. Expo privacy.

6. “Remove ads” purchase

This optional purchase is processed by Google Play, under its terms and privacy policy. Brains2Dev never sees your payment details, your name or your email address. Google sends it the order information (number, date, product, price, country) for its accounting.

At launch, the game asks Google Play whether the purchase is valid on your Google account, to remove forced ads or restore them after a refund.

7. Reminder, sharing and reviews

• Daily challenge reminder: off by default. If you turn it on, the game schedules a notification on your phone around 6 pm, on days when the daily climb has not been played yet. Nothing is sent by a server: these are local notifications.
• Sharing: “Share” opens Android’s share sheet; you choose the app and the recipient. The text contains your result and the game’s Google Play link, with a note of its origin (shared from the game), and nothing that identifies you.
• Reviews: after a won climb, the game may show Google Play’s review window, handled by Google; Brains2Dev does not know whether you rated the game unless you publish a review.

8. Android permissions

The game does not access your location, contacts, photos and files, camera or microphone.

9. Children

The game is intended for teenagers aged 13 and over and for adults. It is not designed for children and does not knowingly collect data about them.

10. Your rights

Under the General Data Protection Regulation (GDPR) and similar laws, you have the right to access, rectify, erase, restrict, object to and port your data, and to withdraw your consent at any time.

You exercise most of these rights directly: “Settings › Privacy” (ads and, in Europe, usage measurement), “Settings › Usage measurement” outside Europe, and erasing the game’s data in Android (section 2). As measurement data is only linked to a random identifier, Brains2Dev cannot find it from your name; clearing the game’s storage creates a new identifier. For data processed by Google as an independent controller, use My Ad Center or your Google account.

For any question: contact@brains2dev.fr (subject “My personal data”). We answer within one month. You may lodge a complaint with your data protection authority; in France, the CNIL, 3 place de Fontenoy, TSA 80715, 75334 Paris Cedex 07, www.cnil.fr.

11. Changes

This policy may change, for example if the game gains a feature. The update date is shown at the top of the page; an important change is announced in the game’s release notes on Google Play.