Privacy Policy

Multiplication Bug — Last Updated: September 5, 2026

Developer: Lunavielis
Contact: [email protected]

Summary

Multiplication Bug is a children's educational app that helps kids learn multiplication facts. The developer does not collect, transmit, or share your child's personal information or learning data. Learning profiles stay in app storage on your device. Parent-only review and store actions may communicate with Apple, Google, or the selected browser as described below.

What Information Does the App Store?

The app stores the following information locally on your device only:

• Child's name — entered by a parent or guardian to identify the learning profile
• Avatar selection — the animal character your child chooses
• Learning progress — which multiplication facts have been practiced, mastery levels, and response times
• Session history — dates and results of practice sessions (up to 300 sessions per profile)
• Review policy state — bounded anonymous engagement counts, dates, replay-protection digests, request timing, and any final parent store choice

Learning information is used solely to power the app's spaced-repetition algorithm and display progress. Review policy state is stored separately, contains no child or profile identifier, keeps no activity log, and records no claim that a review prompt appeared or a rating was submitted.

What Information Do We NOT Collect?

We do not collect, transmit, or have access to:

• Email addresses, phone numbers, or physical addresses
• Location data or GPS coordinates
• Device identifiers (IDFA, GAID, or similar)
• Photos, videos, or audio recordings
• Browsing history or usage analytics
• Any data from other apps on your device

There are no analytics tools, advertising networks, crash reporters, or third-party tracking SDKs in this app. The app itself works fully offline. After a parent directly passes the parental gate and the on-device eligibility rules are met, the app may open Apple or Google's native in-app review flow. A parent may also choose to open this privacy policy or the official App Store or Google Play listing in a browser. The app sends no child names, profile identifiers, learning progress, response history, review-policy aggregates, or custom rating payload through those actions.

How Is Data Stored?

Learning/profile data and bounded anonymous review-policy state are stored in separate local files using standard app storage on your device. App-owned data is not encrypted beyond what the device operating system provides and is not uploaded by Multiplication Bug. Standard operating-system backup behavior is controlled by Apple or Google. Only parent-initiated browser/store handoffs and the platform-controlled native review invocation may communicate with a platform service.

How Can I Delete My Child's Data?

You have two options:

• In-app deletion: Go to Settings → For Parents (requires parental verification) → Delete Profile. This permanently removes all learning data for that child's profile. Anonymous installation-level review-policy state remains so request limits and a parent's store choice survive profile deletion or reset.
• Uninstall the app: Removing the app from your device deletes app-owned local data, including review-policy state, subject to the platform's standard backup behavior.

There is no server-side data to delete because we never collect it.

Parental Controls

Access to sensitive features is protected by a parental verification gate:

• How it works: A 3-digit number is displayed as words (e.g., "five hundred and twelve"). The parent types the digits to proceed.
• What it protects: Deleting profiles, resetting progress, accessing the detailed parent dashboard, and opening external privacy or store links.
• Anti-bypass: 3 attempts allowed, then a 30-second cooldown before trying again.

This gate does not collect or store any additional information.

Children's Privacy (COPPA Compliance)

Multiplication Bug is designed for children ages 6–9. We comply with the Children's Online Privacy Protection Act (COPPA):

• We do not collect personal information from children online.
• We do not transmit child/profile or learning data to our servers or third parties.
• We do not use persistent identifiers for tracking purposes.
• App-owned learning and bounded anonymous review-policy data remains in app storage under your control.

European Privacy Rights (GDPR)

For users in the European Union and European Economic Area:

• Legal basis for processing: Legitimate interest — the app processes minimal data locally to provide its core educational function.
• Data controller: The data remains on your device. We do not act as a data controller in the traditional sense, as we never receive or access the data.
• Your rights: You have the right to access (view your child's data directly in the app), rectify (change name/avatar in Settings), and erase (delete profile in Settings) your child's data at any time.
• Data transfers: The app transfers no child/profile or learning data. Parent-initiated platform-store/browser interactions and operating-system backups are governed by the selected provider's terms.

Platform and Third-Party Services

Multiplication Bug does not integrate analytics, advertising, tracking, social, or cloud-learning services. It uses Apple StoreKit or Google Play In-App Review only after direct parental verification and sufficient on-device engagement. The first request can become eligible after five naturally completed Daily Missions on five local dates spanning at least seven days. A second and final request requires at least 30 days plus later qualifying engagement. Apple or Google decides whether to display anything, and the app cannot observe whether a rating was submitted.

The parent-only Rate the app action opens the verified platform listing and permanently disables future automatic review requests before the handoff. Parent-only links may also open this policy in a browser. Apple, Google, or the selected browser may process standard platform interaction data under their own terms. Multiplication Bug supplies no child/profile, learning, or review-policy payload.

Changes to This Policy

If we update this privacy policy, we will update the "Last Updated" date at the top. Significant changes will be noted in the app's release notes.

Contact Us

If you have questions about this privacy policy or your child's data, please contact us at:
[email protected]

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