Legal

Privacy Policy — Math Explorer

App: Math Explorer (package com.pouxo.learn.mathexplorer)
Developer: TriCode Studio · Contact: support@tricodestudio.com
Effective date: 31 July 2026 · Last updated: 5 August 2026

1. Introduction

Math Explorer (“the App”, “we”, “us”) is an offline-first educational math game made for children and students. This Privacy Policy explains what information the App handles, why, and what choices parents and guardians have.

Because Math Explorer is directed to children, we designed it to work without accounts, without sign-in, and without sending any personal information to us or to anyone else. The App never asks for an email address, phone number, photo, voice recording, contact list, or precise location — no screen in the App requests any of these.

A parent or guardian can set up a separate profile for each child so that siblings keep their own progress, and may give each profile a name or nickname. This is optional: leaving it blank simply labels the profile “Player 1”, “Player 2”, and so on. Any name entered is stored only in the App’s private storage on the device. It is never transmitted to us or to any third party, and we never see it.

By downloading or using Math Explorer, you agree to this Privacy Policy. If you do not agree, please do not use the App.

2. Quick summary

3. Information stored on your device

The App saves a small amount of gameplay information locally, using an on-device database (Room) and app preferences. This data stays in the App’s private storage area:

• Child profiles — for each profile, the name or nickname a grown-up chose (optional; blank profiles are labelled “Player 1”, “Player 2”, and so on), the animal picture selected for it, and the date it was created. Profiles are created and switched only behind the parental gate.
• Level high scores — the level name (Addition, Subtraction, Multiplication, Division), the sub-level number, and the best score achieved.
• Session history — for each finished round: the score, how many questions it contained, how long it lasted, and when it finished. This is what the parent area uses to show how much a child has been playing.
• Practice history — for each individual number fact the child has met (for example 7 × 8), how many times it has been seen, how many times it was answered correctly, and when it was last shown. The App uses this to ask more often about the facts a child finds difficult, and the parent area uses it to suggest what to practise.
• Rewards and habits — the daily streak, the daily goal and how much of it is done, best scores in the Mixed Challenge and Beat the Clock modes, and which collectible stickers have been earned.
• Settings — whether the question timer, sounds and vibration are switched on, and the timer duration. These are chosen in the parent area.

None of this is transmitted to us or to any third party — it stays in the App’s private storage, which other apps on the device cannot read. Apart from a profile name, if a grown-up chooses to enter one, it contains no identifiers and nothing that can be linked back to a specific person.

Android Backup: the App allows Android’s standard backup feature. If the device owner has device backup enabled in Android settings, this local data — including any profile names — may be included in the backup Google stores for that Google Account. This is a device-level feature controlled entirely by the device owner, and it can be turned off in the Android system settings. We have no access to those backups.

Deleting this data: removing a child’s profile in the parent area permanently deletes that child’s scores, practice history and rewards. Uninstalling the App, or using Settings → Apps → Math Explorer → Storage → Clear data on the device, permanently deletes everything stored locally.

4. Information collected by third-party services

Math Explorer includes three Google services. These services may automatically collect certain technical information from the device. We do not receive any personal information about a specific child from them — we only see aggregated reports and anonymized crash logs.

4.1 Google AdMob (advertising)

The App displays advertisements provided by Google AdMob to keep it free.

• Because Math Explorer is a child-directed app, ad requests are tagged for child-directed treatment and under the age of consent, and the maximum ad content rating is restricted to G (general audiences). Ads are therefore non-personalized: they are selected based on general, non-personal context (such as the app’s content) rather than on a profile of the user’s interests or browsing history.
• AdMob may process technical information needed to serve, render, and measure an ad — such as IP address (used to derive coarse, country/region-level location), device type, operating system version, ad size, and whether an ad was viewed or clicked. It may also use a non-resettable, non-identifying token in place of an advertising identifier when child-directed treatment is enabled.
• The App does not declare the com.google.android.gms.permission.AD_ID permission. It is explicitly removed from the App’s manifest, so the Android Advertising ID is not collected or transmitted.
• Where ads appear: a banner on the level-selection screen, a labelled ad card at the bottom of the home screen, and a full-screen ad shown occasionally when a child leaves the results screen at the end of a round. No ads are shown while a question is on screen, and none are shown when the App is opened.
• The App also offers an optional “watch a video for a hint” reward. This never starts on its own — a child must choose it from a prompt that states a video advert will play first, and can decline.
• Google’s advertising practices: policies.google.com/technologies/ads
• AdMob and children: support.google.com/admob/answer/6223431

4.2 Firebase Crashlytics (crash reporting)

If the App crashes or becomes unstable, Crashlytics sends us a diagnostic report so that we can fix the problem. A report may include:

• the stack trace (the technical location of the error in our code),
• device model, operating system version, and device language,
• App version and build,
• device state at the time of the crash (for example, free memory or storage, whether the device was rooted),
• a randomly generated Crashlytics installation UUID, which distinguishes one installation from another so repeated crashes can be grouped. It is not linked to any personal identity and is reset when the App is reinstalled.

Crash reports contain no personal information and no gameplay content. Crashlytics data is retained by Google for up to 90 days.

Crashlytics data handling: firebase.google.com/support/privacy

4.3 Firebase / Google Analytics for Firebase (usage statistics)

We use Analytics to understand, in aggregate, how the App is used — for example how many sessions are started, which levels are played most, and where children stop making progress — so we can improve the learning experience.

• Analytics records events (such as “app opened”, “level started”, “level completed”) together with a randomly generated App Instance ID, App version, device model, operating system version, language, and country/region derived from the IP address. IP addresses are not stored by Analytics in raw form for long-term use.
• For child-directed use, ad personalization and advertising-identifier collection are disabled in the Analytics configuration, and Analytics data is not used to build advertising profiles or for remarketing.
• We only ever see grouped, statistical reports. We cannot identify an individual user from Analytics.

See Firebase privacy and security and the Google Privacy Policy.

5. Children’s privacy

Math Explorer is intended for children and is designed to comply with the Children’s Online Privacy Protection Act (COPPA), the GDPR and GDPR-K requirements for children in the EU/EEA and the UK, and the Google Play Families Policy and Designed for Families requirements.

Specifically:

• We do not collect or receive personal information from children. Nothing a child types or does in the App is transmitted to us. The only free-text field anywhere in the App is the optional profile name, which sits behind the parental gate and never leaves the device.
• There is no account creation, no user-generated content, no chat, no messaging, no social features, and no way to share information with other users.
• Ads are non-personalized and tagged as child-directed. We do not use behavioral or interest-based advertising, and we do not permit remarketing or interest-based ad targeting toward children.
• We use only ad and analytics SDKs that are self-certified as compliant with Google Play’s Families policy requirements.
• Links that leave the App (for example, to this policy or to an app store page) and any settings that change how the App behaves are placed behind a parental gate — a simple math question intended to be answered by an adult.
• We do not sell, rent, or trade any information, and we do not share information with data brokers.

If you are a parent or guardian and you believe your child has somehow provided personal information through the App, please contact us at support@tricodestudio.com and we will delete it promptly.

6. Permissions the App requests

The App deliberately removes the com.google.android.gms.permission.AD_ID permission that the Google Mobile Ads SDK would otherwise add, so the Android Advertising ID cannot be collected. See section 4.1.

The Google libraries the App uses also add a small number of routine technical permissions of their own (for example, keeping the screen awake while a video advertisement plays). None of them grants access to personal data.

The App does not request access to the camera, microphone, location, contacts, calendar, photos, files, or any other sensitive device data.

7. Legal bases for processing (EU / EEA / UK users)

Where the GDPR or UK GDPR applies, we rely on:

• Legitimate interests — for crash reporting and aggregate analytics that keep the App stable and let us improve it, and for serving non-personalized advertising that keeps the App free. These uses are limited, low-risk, and involve no profiling of children.
• Consent — where required by local law, appropriate consent (including verifiable parental consent, where applicable) is obtained before any non-essential data processing, through a consent prompt shown by the Google User Messaging Platform.

Personalized advertising and profiling of children are never carried out, with or without consent.

8. Data retention

• On-device data — profiles, scores, practice history, rewards and settings are kept until the profile is removed in the parent area, or the App is uninstalled or its data cleared.
• Crash reports — retained by Firebase Crashlytics for up to 90 days.
• Analytics events — retained according to the Firebase Analytics retention setting configured for this project (a maximum of 14 months), after which they are deleted or aggregated.
• Ad serving data — retained by Google according to Google’s own advertising retention policies.

9. Data sharing and transfers

We do not sell your data and we do not share it with anyone except the service providers listed in Section 4, who process it on our behalf under their own privacy commitments.

Google processes data on servers that may be located outside your country, including in the United States. Google applies Standard Contractual Clauses and other approved safeguards to these international transfers.

10. Security

Locally stored gameplay data is kept in the App’s private sandbox, which other apps on the device cannot read. Data sent to Google services is transmitted over encrypted HTTPS connections. No method of transmission or storage is completely secure, but the App handles no personal or sensitive information, which keeps the risk very low by design.

11. Your rights and choices

Depending on where you live, you or your child may have the right to access, correct, delete, or restrict processing of personal information, and to object to processing or lodge a complaint with a data protection authority.

Practical steps available to every user:

• Delete all local data — uninstall the App or clear its data in Android settings.
• Limit ad tracking — on the device, go to Settings → Google → Ads and enable Delete advertising ID or Opt out of Ads Personalization.
• Request deletion of analytics or crash data — email us at support@tricodestudio.com with a description of your request. Because the App collects no identifiers that we can link to a person, we may need the approximate date and device model to locate any related records.

We respond to verified requests within 30 days.

12. Third-party links

The App does not contain a browser or general web links. Advertisements shown in the App may open external websites or app store pages operated by third parties. We do not control those destinations, and this Privacy Policy does not apply to them. Please review their own privacy policies.

13. Changes to this Privacy Policy

We may update this Privacy Policy as the App evolves or as legal requirements change. The revised version will be posted at the same location with an updated “Last updated” date. Significant changes will also be described in the app store release notes. Continuing to use the App after an update means you accept the revised policy.

14. Contact us

Questions, concerns, or requests about privacy:

TriCode Studio
Email: support@tricodestudio.com

If you are a parent or guardian with a concern about your child’s privacy, please write “Children’s Privacy” in the subject line so we can prioritize your message.

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See also our Terms & Conditions.