Terms of Sale

Effective as of February 15, 2026

Article 1 - Purpose

These Terms of Sale (hereinafter "Terms") govern the contractual relationship between Mathflow AI SAS (hereinafter "MATHFLOW"), a simplified joint-stock company with a share capital of €76,053, registered with the Lille Métropole Trade and Companies Register under number 912 248 762, and any natural or legal person (hereinafter "the Customer") wishing to subscribe to a paid subscription on the MATHFLOW platform.

Any subscription implies unreserved acceptance of these Terms.

Article 2 - Services Offered

MATHFLOW offers Premium subscriptions providing access to advanced features:

  • Unlimited access to all learning paths
  • Personalized AI coach available 24/7
  • Advanced statistics and detailed progress tracking
  • Exclusive content and additional exercises
  • Ad-free experience
  • Priority support

Article 3 - Pricing

Subscription prices are displayed in euros including all taxes (VAT). MATHFLOW reserves the right to modify its prices at any time. New prices will only apply to new subscriptions or renewals.

Available subscription plans include:

  • Monthly subscription: monthly billing, automatically renewed
  • Annual subscription: annual billing with significant discount
  • Family subscription: access for multiple users in the same household

Article 4 - Payment Methods

Payment is made online by credit card (Visa, Mastercard, American Express) or through app stores (Apple App Store, Google Play Store). Payment is due immediately upon subscription.

Payments are secured by our PCI-DSS certified payment providers.

For purchases made on our website, our order process is conducted by our online reseller Paddle.com. Paddle.com is the Merchant of Record for all our orders: Paddle bills the Customer, collects payments, handles billing, applicable taxes, payment-related customer service inquiries and returns/refunds. The applicable payment, billing, cancellation and refund terms are those of the Paddle Buyer Terms.

Article 5 - Renewal and Cancellation

Subscriptions are automatically renewed at their expiration unless cancelled by the Customer. Cancellation can be made at any time:

  • From the app settings
  • Via the App Store or Google Play Store settings
  • By email to contact@mathflow.ai

Cancellation takes effect at the end of the current subscription period. No prorated refund will be provided.

Article 6 - Right of Withdrawal

In accordance with Articles L.221-18 and following of the French Consumer Code, the Customer has 14 days from the subscription date to exercise their right of withdrawal, without having to justify reasons.

However, pursuant to Article L.221-28 of the French Consumer Code, the right of withdrawal cannot be exercised if the Customer has started using the service before the end of the withdrawal period and has expressly waived their right of withdrawal.

To exercise this right, the Customer must send a request by email to contact@mathflow.ai indicating their contact details and subscription date.

Article 7 - Trial Period

MATHFLOW may offer a free trial period. At the end of this period, the subscription will automatically convert to a paid subscription unless cancelled before the end of the trial.

The Customer will be informed of the trial end date and the amount that will be charged if not cancelled.

Article 8 - Liability

MATHFLOW is committed to providing services with due diligence. However, MATHFLOW cannot be held liable for:

  • Temporary service interruptions for maintenance
  • The Customer's academic or school results
  • Use of services by third parties through the Customer's account
  • Indirect damages resulting from use of the services

Article 9 - Personal Data Protection

Personal data collected during subscription and use of services is processed in accordance with the General Data Protection Regulation (GDPR) and applicable privacy laws.

9.1 - Data Collected for Sales

When subscribing, MATHFLOW collects the following data:

  • Identification data: name, surname, email address
  • Billing data: payment information (processed by our PCI-DSS certified providers)
  • Transaction and subscription history

9.2 - Anonymization and Hosting

All personal data is stored in an anonymized manner and hosted exclusively on servers located in France. MATHFLOW guarantees that no data transfer outside the European Union is carried out without the adequate safeguards provided for by the GDPR.

Banking data is never stored by MATHFLOW. It is directly processed by our certified payment providers.

9.3 - Customer Rights

The Customer has the right of access, rectification, erasure, portability, objection, and restriction of processing of their personal data. These rights can be exercised by contacting the Data Protection Officer at dpo@mathflow.ai.

For more information, please consult our Privacy Policy.

Article 10 - Customer Service

For any questions regarding a subscription or to report an issue, customer service is available by email at contact@mathflow.ai. MATHFLOW is committed to responding within 48 business hours.

Article 11 - Mediation

In case of dispute, the Customer may use the consumer mediation service free of charge. The competent mediator is: CM2C - 14 rue Saint Jean - 75017 Paris - www.cm2c.net.

The Customer may also use the European Online Dispute Resolution platform: https://ec.europa.eu/consumers/odr

Article 12 - Applicable Law

These Terms are governed by French law. In case of persistent dispute after mediation attempt, the courts of Lille shall have sole jurisdiction.

Seller Information

Mathflow AI SAS

Headquarters: 165 avenue de Bretagne, 59000 Lille, France

RCS: Lille Métropole 912 248 762

Share capital: €76,053

VAT No: FR35 912 248 762

Email: contact@mathflow.ai

© 2026 Mathflow AI. All rights reserved.