01The service

Canvas Calculator provides expression editing, mathematical calculations, canvases, editable history, number formatting, appearance settings, reference currency conversion, and canvas export and sharing. The free version displays ads. Optional Pro removes all ads and unlocks full-resolution image, PDF, and CSV exports. Standard image exports are free and unlimited; calculation features are the same in both versions. Features may change between versions.

02Permission to use

Subject to these terms and applicable law, you may install and use the app on supported devices for lawful purposes. Do not attack the service, bypass security controls, or infringe the rights of others. Rights granted by mandatory law remain unaffected.

03Calculation accuracy

Results can be affected by your input, rounding, supported operations, software errors, and device behavior. Independently check calculations that affect safety, money, health, engineering, or other important decisions. Currency rates are reference data, generally refreshed daily and cached for offline use; they may be delayed or unavailable and are not guaranteed real-time market, bank, or transaction rates. Verify rates, fees, and final amounts with the relevant provider before making a financial decision. The app does not execute currency exchanges or provide professional advice.

04Your data and content

You retain rights to the expressions, canvas names, and exported files you create. You decide what to share and with whom. Canvases are stored locally, with no app-provided cloud synchronization. Current versions disable Android cloud backup and device-to-device app-data transfer. Clearing data, uninstalling, or device failure can remove local records. Keep independent copies of important information. Advertising, purchases, usage analytics, remote configuration, currency services, crash diagnostics, and feedback are described in the privacy policy.

05Pro purchases, subscriptions, and refunds

Pro is offered as a one-time lifetime purchase or an automatically renewing monthly or annual subscription. Available offers, local prices, taxes, billing periods, and payment terms are shown in the app and Google Play before you confirm. A lifetime purchase is a non-consumable purchase with no recurring subscription charge.

Eligible new customers may receive a 3-day free trial on the annual subscription. Eligibility is determined by Google Play. Unless you cancel before the trial ends, it converts to the paid annual subscription at the price shown at checkout. Monthly and annual subscriptions automatically renew until canceled, and Google Play charges the payment method associated with your account under its billing terms.

Manage or cancel through the app’s Manage subscription action or Google Play → Payments & subscriptions → Subscriptions. Uninstalling the app or clearing its data does not cancel a subscription. Cancellation normally stops the next renewal while access continues until the end of the current paid period, subject to Google Play’s rules and applicable law. Cancel before a trial ends to avoid its paid renewal. See Google Play subscription management.

Use Restore purchases with the Google account that made the purchase. Pending payments do not unlock Pro. Access may be removed after a purchase is refunded, revoked, suspended, or expires. Subscription changes and offline status may take time to appear; reconnect to Google Play to refresh your purchase status.

Refund requests are handled under Google Play’s refund policies and applicable consumer law; canceling a subscription does not automatically refund previous charges. You can also contact support@weibibabu.com for purchase help. These terms do not limit mandatory statutory rights.

06Third-party services

Google Play, Google advertising and Firebase services, Cloudflare-hosted currency services, rate-data providers, email applications, and receiving applications operate under their own applicable terms and policies. Availability may depend on device, network, region, and privacy choices.

07Updates and responsibility

We may update, modify, or discontinue features. To the extent permitted by applicable law, the app is provided as available without a guarantee that it will be uninterrupted or error-free. Nothing in these terms excludes rights or liabilities that cannot legally be excluded.

08Changes and contact

Revised terms will be published here with an updated date. You may stop using and uninstall the app at any time. Questions can be sent to support@weibibabu.com.