Multiplication Challenge
Privacy Policy

TechnoBevy · Effective date: 2 November 2026 · Last updated: 2 November 2026

1. Who we are and what this policy covers

This policy describes how the Multiplication Challenge app for Android, listed on Google Play as Kids Multiplication Challenge (package com.brainversekids.multiplicationchallenge), handles information. The app is developed and published by TechnoBevy (“we”, “us”) under the BrainVerse Kids name.

This policy applies only to Multiplication Challenge. Other TechnoBevy and BrainVerse Kids apps have their own privacy policies. When you find, download or update the app on Google Play, Google processes information under Google’s privacy policy.

2. Made for children and families

Multiplication Challenge is designed for children aged about 6 to 11 and their families, and is published under Google Play’s Families policy. We do not ask children for personal information, and we do not knowingly collect it from them, other than the technical information described in sections 5 to 7. A multiplication question written in words (a parental gate) protects the Settings area for grown-ups, which holds the Sound effects, Haptics, Reduce motion and Picture helpers settings, a progress page for grown-ups and a link to this policy.

3. Information we do not collect

Multiplication Challenge:

• has no accounts or sign-in, and no user profiles that leave the device;
• does not ask for a name, email address, phone number or other contact details;
• has no permission to access precise location, contacts, photos, camera, microphone, calls or files on the device;
• has no chat, messaging or user-generated content, and no purchases or subscriptions;
• has no permission to read the device’s advertising ID, and marks every ad request in the way Google says stops the advertising ID being sent; and
• does not connect to any server operated by TechnoBevy.

4. Information stored only on the device

The app keeps the following in its private storage on the device. It is not sent to us, and it is not included in the usage statistics in section 6, except for the level results listed there.

Stored item	Why
Stars and best results for each level, unlocked reefs, restored reefs and Reef Friends	To show progress and open the next levels
A record of each multiplication fact (right first time, typical answer time, how well it is known), shown in the Pearl Grid	To bring back facts that need practice, and to show the progress page for grown-ups
Total playing time	To show it on the progress page for grown-ups
Settings: Sound effects, Haptics, Reduce motion and Picture helpers	To remember the choices made in Settings
A local profile identifier	To keep this device’s progress together. It is never sent anywhere

5. Advertising (Google AdMob)

The app shows a banner ad in its own strip at the bottom of the reef map and of a reef’s level list. A full-screen ad may appear when a level’s results screen is closed, at most once every three completed levels and at most once every three minutes. A full-screen ad, which may be a video, may also appear once for each reef, after that reef is restored for the first time and a short card says an ad is coming. There are eight reefs, so there are at most eight of these. There are no ads when the app starts, while a level is being played or paused, on the results screen, on celebration or progress screens, in Settings, behind the parental gate or on the progress page for grown-ups. Google’s ad software controls each ad’s close button and its timing. The ads are provided by Google AdMob, which takes part in Google Play’s Families Self-Certified Ads SDK Program.

The app sets up every ad request for a young audience:

• each request is marked as directed to children and as under the age of consent;
• only non-personalised ads are requested, so ads are not based on a child’s interests or past behaviour;
• ads are limited to content rated suitable for general audiences (G);
• the permissions that would give access to the advertising ID and to Android’s ad interest topics and ad measurement services are removed from the app; and
• in our AdMob settings we also block sensitive ad categories and ads for social networks and online communities.

To show ads, measure them and prevent fraud, Google’s ad software in the app collects and shares with Google:

• the device’s IP address, which can indicate approximate location;
• information about how the app and its ads are used, such as app launches, ad requests, ad views, video views and taps;
• diagnostic information about the performance of the app and the ad software;
• device information, such as the device model, Android version, language, time zone, screen size, memory, network type, mobile carrier code, battery level and charging state, and the app’s name and version; and
• identifiers: an app set ID from Google Play services (for apps installed from Google Play, it is the same across apps from the same developer on the device), a random identifier that the ad software creates and stores inside the app for up to 180 days, and the app instance ID from section 6 with an ad event ID that is also recorded in usage statistics.

Google’s published description of this software also lists, where applicable, identifiers related to accounts signed in on the device. The app has no sign-in and TechnoBevy does not receive such identifiers. We see only aggregated advertising reports. This information is encrypted in transit and handled by Google under Google’s privacy policy. See also how Google uses information from apps that use its services. If an ad is tapped, the advertiser’s website or app handles the visit under its own privacy policy.

The game works fully offline. Without an internet connection no ads are loaded, and every level is still playable.

6. Usage statistics (Google Analytics for Firebase)

The app includes Google Analytics for Firebase. It records basic usage events automatically, such as the first time the app is opened, app sessions and engagement; automatic screen tracking is turned off. The app also records game events: the app being opened, a level being started (with the level, reef, theme and a difficulty score) and completed (with the level, stars, score, hints used, time played and the share of answers right first time, rounded to the nearest ten per cent), a new reef being unlocked, a reef being restored, changes made in Settings and whether the parental gate was answered correctly. It also records when ads are requested and shown, with where they appear. There are no events for individual questions or multiplication facts.

With these events Google collects:

• an app instance ID and a Firebase installation ID, both created for this installation of the app;
• device model, Android version, language, time zone and app version;
• approximate location (country, region or city), derived by Google from the IP address; and
• how the app was installed, including the Google Play install referrer.

Analytics does not collect the advertising ID or the Android ID, and its ad-related features (ad storage, ad user data and ad personalisation signals) are turned off in the app. Google signals is turned off, and our Analytics property is not linked to Google Ads or AdMob. Events never include a name, contact details or anything typed into the app.

We use this information only in aggregated reports, to see how many people play, which levels are too easy or too hard, and which devices to support. The same Analytics property also receives statistics from our other BrainVerse Kids apps. Our Analytics account settings currently let Google use this data to improve its own products and services and to contribute to aggregated benchmarks, and let its technical support staff access it when needed. Google states that it does not use data shared this way for its own ad personalisation or ad targeting. Google processes the data under Google’s privacy policy.

7. Crash reports (Firebase Crashlytics)

If the app crashes, or recovers from a serious error, Firebase Crashlytics sends a report to Google so that we can find and fix the problem. A report contains:

• technical details of the error: where in the app’s code it happened and the state of the app at that moment, including memory data needed to process crashes in the app’s native code;
• information about the device at that moment, such as its make and model, processor, Android version, screen orientation, battery level, memory and storage, and whether it is rooted;
• the app’s version;
• an installation identifier created by Crashlytics, the Firebase installation ID and a session identifier; and
• the usage-statistics events (section 6) recorded shortly before the crash.

To report how many sessions run without crashing, the Crashlytics software also sends basic information about each app session: the session and installation identifiers, the app, and the device’s make, model, Android version, language, country, mobile carrier code and network type. The app adds nothing about the child or the player to these reports: no name, user ID or profile. Google processes them under the Firebase privacy and security terms.

8. How information is shared

We do not sell personal information. Information is shared only with Google, as the provider of ads (section 5), usage statistics (section 6) and crash reports (section 7). The app contains no other advertising, analytics or crash-reporting software. The Privacy policy link in Settings opens this page in the web browser.

9. Device permissions

Permission	What it is used for
Internet and network state (INTERNET, ACCESS_NETWORK_STATE)	To load ads, and to send usage statistics and crash reports.
Audio settings (MODIFY_AUDIO_SETTINGS)	To play the game’s sound effects.
Vibration (VIBRATE)	For the Haptics setting.

Google’s ad and analytics software also adds technical permissions that it needs to work: briefly keeping the device awake and running short background tasks to send data (WAKE_LOCK, FOREGROUND_SERVICE), and reading how the app was installed from Google Play (BIND_GET_INSTALL_REFERRER_SERVICE). The app also declares an internal Android permission that is used only for communication within the app itself. None of the app’s permissions gives it access to location, contacts, photos, camera, microphone, files or the advertising ID.

10. How long information is kept, and how to delete it

• On the device: progress and settings are kept until they are deleted. To delete them, clear the app’s storage in the device’s settings, or uninstall the app. Either one removes what the app keeps in its own storage on that device, including the identifiers stored in the app. Usage statistics waiting to be sent may be held by Google Play services instead, and may still be sent afterwards. A copy in an Android backup is separate and may remain. If Android backup is turned on for the device’s Google account, Android may back up the app’s data and restore it when the app is reinstalled, so progress and settings can come back. We have not confirmed whether a restore also brings back identifiers stored in the app. Backups are managed in the device’s settings and the Google account, not in the app.
• Advertising data: Google keeps ad data under its own retention policies. The random identifier in section 5 expires after 180 days on the device, and the app then creates a new one if it is needed.
• Usage statistics: in our Google Analytics property, event data expires after 2 months and user-level data, such as data linked to an app instance ID, after 14 months. That 14-month period restarts each time the same installation is used again. Aggregated reports are not affected and do not identify anyone.
• Crash reports: Firebase keeps crash stack traces, extracted crash data and the related identifiers for 90 days.

The app has no accounts, so there is no account to delete. If you have a question about deletion, contact us (section 14).

11. Security

Progress is kept in the app’s private storage, which Android isolates from other apps. Google’s ad, analytics and crash-reporting software sends its data to Google over encrypted connections. No method of storage or transmission is completely secure, but we work to protect the information the app handles.

12. Your privacy rights

Depending on where you live, you may have rights to access, correct or delete personal information, or to object to or limit how it is used. Because the app does not send us personal information, most requests are handled on the device (section 10) or with Google for ad, analytics and crash-report data (sections 5, 6 and 7). Parents and guardians can also contact us with any question about their child’s information, and we will respond within the time the law requires.

13. Changes to this policy

If the way Multiplication Challenge handles information changes, we will update this policy before or at the same time as the change, and update the “Last updated” date at the top of this page.

14. Contact us

If you have questions about this policy or about Multiplication Challenge, please contact TechnoBevy at technobevysolutions@gmail.com.