Last updated: 13 October 2026
This policy explains how Asymptote Math Circle handles information when you use the AMC 10 - Asymptote Math Circle Android app and mrasymptote.com.
For privacy questions or requests, contact support@mrasymptote.com.
Information we collect
Account information: When you sign in, we process your email address, account identifier and authentication session to identify your account and protect access.
Practice information: We store selected papers, answers, review flags, practice mode, start times, deadlines and submitted results. These records let you resume practice and review your progress.
Guest information: You can use free practice without creating an account. An essential browser identifier connects your guest session with its saved practice.
Purchase information: We process collection identifiers, transaction references, payment status and purchase verification information to provide access, restore purchases and handle refunds. Google Play purchase verification uses a purchase token and an obfuscated account identifier. Purchase references are encrypted in our server storage. Signing into the same confirmed practice email connects verified collection access and saved practice across the Android app and website.
Website checkout is currently disabled. If website payments through Cashfree are enabled, your email address and the phone number you provide are sent to Cashfree. Your phone number is not stored in our practice database.
Support information: If you contact us, we receive your email address, message and any information you choose to include.
Technical information: Our hosting and service providers may process information such as IP addresses, browser or device information, request times and error records to deliver and secure the service.
How we use information
We use information to sign you in and protect your account; save, resume and score practice; connect practice and purchased access across the app and website; verify purchases, restore access and process refunds when payments are available; respond to support and privacy requests; maintain reliability, prevent misuse and meet applicable obligations.
This version does not include advertising trackers. We do not sell personal information.
Service providers and sharing
We use the following providers for service delivery:
• Supabase: account authentication and email verification.
• Cloudflare: website hosting, application requests and storage of practice and purchase records.
• Resend: delivery of authentication emails.
• Google Gmail and Cloudflare Email Routing: support email communications and forwarding.
• Google Fonts: website typography.
• Google Play: Android purchases when enabled.
• Cashfree: website payments when enabled.
Payment details entered directly into a payment provider's checkout are handled by that provider. We do not store your card number, card security code or UPI PIN.
Providers process information according to their services and privacy policies. Processing may occur outside your country. We may also disclose information when necessary to comply with applicable law or protect the service and its users.
Essential storage and security
The app and website use essential cookies and local storage to maintain sessions, remember guest practice and preserve answers awaiting synchronization.
Existing phone practice transfers to the shared service when verified collection access is connected. Original phone copies remain until in-app account deletion, clearing app data or uninstalling. Changes from another device appear after reloading or reopening the attempt.
We use HTTPS for information transmitted between the app, website and service providers. Access to account and practice records requires the appropriate authentication or guest session. No storage or transmission system can guarantee absolute security.
Retention and deletion
Account and practice records are retained to provide saved practice and account access until deletion is requested and completed. Uninstalling the app, signing out or clearing browser storage does not automatically delete server records.
You can request account deletion at https://mrasymptote.com/account/delete.
To delete your account, open that page or select Account deletion in the app's account page. Sign in with your practice email, type DELETE to confirm, and select Delete my account and practice. The request removes the same account used by the app and website. You can use the web page even after uninstalling the app.
Completed account deletion removes the sign-in account and associated saved practice, including answers and flags. Limited purchase and refund records linked to an opaque identifier may remain for accounting, fraud prevention and prevention of duplicate purchase claims. These retained purchase records do not contain your email address or practice answers.
Deletion through the website cannot erase local copies on a disconnected phone. In-app account deletion removes that account's local practice after server deletion succeeds; clearing app data or uninstalling also removes local copies. Restoring a purchase restores collection access, not deleted practice history.
Support correspondence and provider logs or backups may remain where needed to resolve requests, protect the service or meet applicable obligations.
Deleting an account does not automatically request a refund and may affect access to purchased collections.
Your choices
You may contact support to request access, correction or deletion of your information, or to raise a privacy concern. Additional rights may apply under the laws of your location.
Do not send passwords, sign-in codes or complete payment-card details in a support message.
Young users
The service is intended for students aged 13 and older, not children under 13. A parent or guardian should arrange purchases for minors.
If you believe a child under 13 has provided personal information, contact support so we can investigate and arrange appropriate removal.
Changes to this policy
We will update this page when our data practices change and revise the date above.
Privacy contact: support@mrasymptote.com