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General Terms and Conditions

Version 1.0 — in force as of July 2026

These terms have been drawn up in English. Translations are provided for convenience only; in the event of any inconsistency, the English version prevails.

  • Service: MathMax — online math practice game
  • Operated by: Que?! Communicatie (Debby Grooteman)
  • Registered address: Gran Via de les Corts Catalanes, 672, 08010 Barcelona, Spain
  • VAT / NIF: Y1701744B
  • Email: hello@getmathmax.com
  • Website: https://www.getmathmax.com

Article 1 — Definitions

  • Provider: Que?! Communicatie, a sole proprietorship operated by Debby Grooteman, with registered address at Gran Via de les Corts Catalanes, 672, 08010 Barcelona, Spain, VAT/NIF Y1701744B.
  • MathMax / the Game: the online math practice game and application made available by the Provider via https://www.getmathmax.com and any related applications, including mobile applications.
  • User: any natural or legal person who accesses or uses MathMax.
  • Consumer: a User who is a natural person acting for purposes outside their trade, business, craft or profession.
  • Free Version: the basic version of MathMax that can be used free of charge, anonymously and without an Account.
  • Account: the personal account a User creates in order to access the paid features of MathMax. An Account exists only in combination with a Subscription.
  • Subscription: a paid plan, billed monthly or annually, that unlocks the paid features of MathMax. The available Subscriptions are the Pro Plan, the Family Plan and the School Plan.
  • Pro Plan: a Subscription for one player.
  • Family Plan: a Subscription with one Seat per player within a single household, from four to ten Seats, taken out and managed by one adult subscriber.
  • School Plan: a per-Seat Subscription for Institutions, with graduated volume pricing as published on the website.
  • Seat: the right, under a Family Plan or School Plan, for one designated player to use the paid features of MathMax.
  • Member: a person who uses the paid features of MathMax under a Seat of a Family Plan or School Plan.
  • Institution: a school or other legal person or organisation that takes out a School Plan.
  • Parties: the Provider and the User together.
  • Agreement: any agreement between the Provider and the User regarding the use of MathMax, including any Subscription.

Article 2 — Applicability

  • These terms apply to all use of MathMax and to all offers, Subscriptions and Agreements between the Provider and the User.
  • By using MathMax, the User accepts these terms. A User who does not agree with these terms must not use MathMax.
  • The Provider may amend these terms as set out in the article on changes below.
  • Any deviation from these terms is only valid if expressly agreed in writing by the Provider.

Article 3 — The Game and the service

  • MathMax is an educational game for practising and improving math skills, intended for anyone interested in doing so, including children from 4 years old.
  • The Free Version can be used free of charge, anonymously and without an Account. Game progress and settings in the Free Version are stored only on the User's own device.
  • A Subscription unlocks the full Game as described on the website — including the full fighter roster, every battle stage, playing with other people (local two-player and online versus play), and recorded statistics and progress. The complete curriculum is part of the Free Version and requires no Subscription.
  • The Provider provides MathMax to the best of its ability and may add, change or remove levels, features or content over time.
  • Descriptions, images and screenshots of MathMax are indicative only and may differ from the actual Game.

Article 4 — Accounts and registration

  • An Account is required in order to take out a Subscription and to use the paid features of MathMax. There is no free account: creating an Account forms part of taking out a paid Subscription.
  • The User must provide accurate and complete information when creating an Account and keep their login credentials confidential.
  • The User is responsible for all activity that takes place under their Account.
  • If the Subscription linked to an Account ends, the Account reverts to the scope of the Free Version. Recorded statistics are retained but hidden, and become visible again when a new Subscription is taken out. The User may at any time request deletion of their Account and data as described in the Privacy Policy.
  • The Provider may suspend or close an Account in the event of misuse, fraud, or breach of these terms.

Article 5 — Use by minors and parental responsibility

  • MathMax may be played by children, including children from 4 years old.
  • A User who creates an Account or takes out a Subscription must be at least 18 years old, or must act with the consent and under the supervision of a parent or legal guardian.
  • Subscriptions and any payments are entered into by the adult parent or guardian, who is responsible for payment and for supervising the child's use of MathMax.
  • The processing of personal data, including any data relating to children, is described in the Provider's Privacy Policy and Cookie Policy, available on the website.

Article 6 — Family Plan

  • The Family Plan starts at four Seats and may be increased by the subscriber to a maximum of ten Seats; it is intended for use within one household or family.
  • The subscriber may change the number of Seats at any time within those limits. An increase takes effect immediately and is charged pro rata for the remainder of the current period; a decrease also takes effect immediately and gives no refund or credit for that period. The number of Seats cannot be reduced below the number already held by Members and pending invitations.
  • The Family Plan is taken out and managed by one adult subscriber, who assigns Seats by inviting Members.
  • Where a Member is a child, the subscriber must be that child's parent or legal guardian, and by inviting the child the subscriber consents to the child's use of MathMax and to the associated processing of personal data as described in the Privacy Policy.
  • The subscriber remains responsible for the use of MathMax by the Members of their Family Plan, for supervising child Members, and for the accuracy of the information provided for them.
  • Seats are personal to the invited Member and may not be shared, resold or used for commercial or institutional purposes (such as teaching a class); the School Plan exists for that purpose.

Article 7 — Schools and institutional customers

  • The School Plan is intended for schools and other Institutions. The person who takes out a School Plan on behalf of an Institution warrants that they are authorised to represent and bind that Institution. The Agreement is concluded between the Provider and the Institution.
  • An Institution does not act as a Consumer. Provisions of these terms that by their nature apply only to Consumers — including the statutory right of withdrawal and the consumer venue provision — do not apply to Institutions.
  • The School Plan is licensed per Seat. The Institution chooses the number of Seats (minimum five) and is billed automatically from the Seat quantity under the graduated volume pricing published on the website. The Institution may change its number of Seats; changes take effect and are billed as indicated in the ordering flow.
  • The Institution assigns Seats to its students and staff and manages them through its administrative dashboard. Seats are for the Institution's own educational use and may not be resold or transferred outside the Institution.
  • The Institution is responsible for obtaining any authorisations and consents required for its students' use of MathMax — including, where applicable, the consent of parents or guardians and compliance with Article 8 GDPR and Spanish law (LOPDGDD) — and warrants to the Provider that it has obtained them.
  • Where the Provider processes personal data of students on behalf of the Institution, the Parties will enter into a data processing agreement in accordance with Article 28 GDPR before or at the start of that processing.
  • Student data is used only to provide MathMax. It is never used for advertising or commercial profiling, and it is never sold. Details are set out in the Privacy Policy.
  • On termination or expiry of a School Plan, or when a student leaves the Institution, the student's personal data is handled in accordance with the Privacy Policy and any applicable data processing agreement, including deletion or return on request.

Article 8 — Licence and acceptable use

  • The Provider grants the User a limited, non-exclusive, non-transferable and revocable right to use MathMax for personal, non-commercial purposes — or, for an Institution, for its own educational purposes.
  • The User shall not: copy, modify, decompile or reverse engineer MathMax; redistribute, sell or sublicense it; use it for any unlawful purpose; disrupt or circumvent any security or technical measure; use bots or other automated means; or infringe the rights of the Provider or of third parties.
  • In the event of a breach of this article, the Provider may suspend or terminate the User's access, where permitted by law without a refund.

Article 9 — Prices, Subscriptions and payment

  • The Free Version is free of charge.
  • Prices for Subscriptions are stated on the website and at checkout, in the currency indicated there. Where a price is shown as including tax (such as VAT/IVA), this is indicated; otherwise, applicable taxes are shown and added at checkout.
  • Subscriptions run for a monthly or an annual period, as selected by the User, are billed in advance, and renew automatically for successive periods of the same length until cancelled.
  • For the Family Plan and the School Plan, the amount due is calculated automatically from the number of Seats — at the per-Seat price published on the website for the Family Plan, and under the published graduated volume pricing for the School Plan.
  • Payment is made through the payment method offered at checkout on the website; payments are processed by the Provider's payment provider (Stripe). If MathMax is obtained through an app store, that store's billing and refund terms may additionally apply.
  • The Provider may change Subscription prices. Existing subscribers will be informed in advance, and a Consumer may cancel the Subscription if they do not accept the new price.
  • If a payment fails, the Provider may suspend access to the paid features until the outstanding amount has been paid.

Article 10 — Right of withdrawal (Consumers)

  • A Consumer who takes out a Subscription in principle has a statutory cooling-off period of 14 calendar days during which they may withdraw from the Agreement without giving any reason.
  • Because a Subscription provides immediate access to digital content and services, the Consumer expressly requests and consents to the Provider beginning performance immediately and acknowledges that, once access to the paid content has begun with that consent, the right of withdrawal is lost.
  • To exercise the right of withdrawal where it still applies, the Consumer can contact hello@getmathmax.com, if desired using the statutory model withdrawal form.

Article 11 — Term and cancellation of a Subscription

  • A Subscription is entered into for a monthly or an annual term, as selected, and renews automatically for successive periods of the same length.
  • The User may cancel the Subscription at any time with effect from the end of the current paid period. Cancellation is made at least as easily as taking out the Subscription.
  • After cancellation, access to the paid features ends at the end of the current paid period. Amounts already paid for the current period are not refunded, unless the law provides otherwise.
  • The Provider may suspend or terminate a Subscription in the event of a breach of these terms.

Article 12 — Availability, maintenance and changes

  • The Provider aims to keep MathMax available but does not guarantee that it will be available uninterrupted or free of errors.
  • The Provider may carry out maintenance, updates and changes, and may temporarily limit or suspend access to MathMax.
  • The Provider may discontinue MathMax or any part of it. Where a paid Subscription is affected, the Provider will refund any amount already paid for the period that can no longer be used.

Article 13 — Intellectual property

  • All intellectual property rights in MathMax, including the software, design, content, levels, graphics, logos and trademarks, belong to the Provider or its licensors.
  • Nothing in these terms transfers any such rights to the User. The User only obtains the limited licence described in Article 8.

Article 14 — Provider's obligations (best-effort)

  • The Provider performs its services to the best of its knowledge and ability. Its obligations are best-effort obligations and not obligations to achieve a specific result, such as any particular improvement in the User's math skills.
  • The Provider may engage third parties, such as hosting and payment providers, to perform the service.

Article 15 — Disclaimer (educational results and content)

  • MathMax is an educational game intended for practising math skills and for entertainment. While regular practice can help, the Provider does not promise or guarantee any specific result or level of improvement, as this depends on the individual user and how they use the game.
  • MathMax is not a substitute for formal education, tutoring, or any professional educational, psychological or medical assessment or advice.
  • Content on the website and blog (such as articles, tips and examples) is provided for general information and educational purposes only and to the best of the Provider's knowledge. It does not constitute professional advice, and the User remains responsible for how they use it.
  • The website or blog may contain links to third-party websites. The Provider has no control over and is not responsible for the content, accuracy or availability of those websites.
  • The Provider may change, update or remove content at any time and does not guarantee that all content is complete, accurate or up to date at all times.

Article 16 — Liability

  • The Provider is only liable for damage caused by its intent or gross negligence.
  • The Provider is not liable for indirect damage, including consequential loss, lost profit, lost savings, lost data or damage to third parties.
  • Insofar as the Provider is liable, its liability is limited to the amount paid by the User under the Subscription in the twelve (12) months preceding the event giving rise to the liability, or, if higher, the amount paid out in the relevant case by the Provider's liability insurance (if any).
  • Nothing in these terms excludes or limits any liability or right that cannot be excluded or limited under mandatory law, including a Consumer's statutory rights.

Article 17 — Indemnity

  • The User indemnifies the Provider against all third-party claims arising from the User's use of MathMax in breach of these terms or of applicable law.

Article 18 — Force majeure

  • The Provider is not liable for any failure to perform that is caused by force majeure (fuerza mayor), being circumstances beyond its reasonable control. This includes, but is not limited to: failures of hosting, internet, electricity or telecommunications; cyberattacks or computer viruses; strikes; government measures; transport problems; and natural disasters.
  • During a situation of force majeure, the Provider's obligations are suspended. If the force majeure situation lasts longer than 30 calendar days, either Party may terminate the affected Agreement in writing, in whole or in part, without any obligation to pay compensation.

Article 19 — Complaints

  • Complaints about MathMax can be submitted to hello@getmathmax.com. The Provider aims to respond within a reasonable period.
  • Submitting a complaint does not suspend the User's obligations, unless the Provider indicates otherwise in writing. A Consumer's statutory rights remain unaffected.

Article 20 — Changes to these terms

  • The Provider may amend or supplement these terms. Changes of minor importance may be made at any time.
  • In the event of a material change, subscribers will be informed in advance, and a Consumer may cancel the Subscription if they do not accept the change.
  • The version of these terms published on the website applies to the use of MathMax.

Article 21 — Transfer of rights

  • The User may not transfer its rights or obligations under the Agreement to a third party without the prior written consent of the Provider.
  • The Provider may transfer its rights and obligations under the Agreement to a third party, for example in the context of a transfer of its business, and will inform Users of any such transfer.

Article 22 — Personal data and privacy

  • The Provider processes personal data in accordance with the General Data Protection Regulation (GDPR) and applicable Spanish data protection law. Details are set out in the Provider's Privacy Policy and Cookie Policy, available on the website.

Article 23 — Severability

  • If one or more provisions of these terms are or become void or voidable, this does not affect the validity of the remaining provisions.
  • A void or voidable provision will be replaced by a valid provision that reflects the purpose of the original provision as closely as possible.

Article 24 — Language

  • These terms have been drawn up in English and may be made available in other languages. Translations are provided for convenience only; in the event of any inconsistency or dispute about interpretation, the English version prevails.

Article 25 — Applicable law and competent court

  • These terms and all Agreements between the Parties are governed exclusively by Spanish law.
  • Disputes between the Parties will be submitted to the competent courts of Spain. A Consumer retains the right, under mandatory consumer law, to bring proceedings before, and to the protection of the mandatory law of, their place of residence.

Drawn up in July 2026 — Version 1.0