For grown-ups
Privacy policy
Last updated: 1 November 2026
Multiplication with Tavi is a children’s learning game from Bariton. The game keeps learning records in the app’s private storage and uses the app stores to manage purchases.
Learning records and voice
The app stores answers, help use, completed activities and unfinished play locally so the child can continue later. We do not send these learning records to our servers. Your operating system may include app data in backups, according to your device and account settings.
Tavi’s instructions are prerecorded. The app does not record speech, access the microphone or camera, request a child’s name or email address, or create a child account.
Purchases
Three games are included. A one-time purchase opens the remaining seven. The store presents payment and account authentication. We do not receive your payment-card details.
On iPhone and iPad, Apple’s StoreKit provides verified purchase status to the app. We do not operate a separate server for Apple purchase verification.
On Android, the app sends the item identifier and a Google Play purchase reference over HTTPS to our verification service. The service checks the purchase with Google Play and returns an entitlement to the app. It does not create a customer profile or keep a purchase database. App code does not log purchase references.
The app keeps verified entitlement information locally so an already verified purchase can remain available offline. When connected, it may refresh purchase status. Purchases and store-account records are also governed by Apple’s or Google’s own policies.
App-review access
A store reviewer may enter a review code in the grown-ups area. The app sends that code, the app and product identifiers, and a random request reference over HTTPS to our verification service. A valid code opens a temporary review session. Review access is kept in memory, ends automatically and is separate from store purchases and learning records. Review codes and request references are not logged or kept in a customer database.
Services involved
Apple and Google Play provide their platform and billing services and may process account, transaction and technical information. Our Android verification service and these web pages are hosted by Cloudflare, which processes network requests and may process technical connection information, including IP addresses, to deliver and protect the service.
See the Apple privacy policy, Google privacy policy and Cloudflare privacy policy for their practices.
Google Play billing diagnostics
On Android, the Google Play Billing library sends Google technical events about billing operations, including results, errors and timing. These events can include the app and library versions, device model and operating-system details, language and network information, and a random identifier for a BillingClient instance. Google uses technical information to operate, measure and improve its services. This billing information does not include the child’s answers, learning history or recordings. It is separate from the purchase reference sent to our verification service. Google’s processing and retention are described in the Google privacy policy.
Advertising and analytics
There are no ads in the game. We do not send children’s answers, learning history or recordings to an analytics service, and we do not build advertising profiles from play. These support pages do not run advertising or analytics scripts.
Contact and control
A grown-up can contact support@bariton.dev with privacy questions or a request about information they have sent us. We use information voluntarily included in a support message to respond to that request. A child’s name or photo is not needed.
Local app data can be removed through your device’s app-storage controls. This can remove learning progress. Device backups and store purchase history are managed through your device, Apple or Google account settings.
If our practices change, we will update this policy and its date.