Terms & Conditions

Last updated: 18 May 2026

These terms and conditions apply to the use of the Grippa platform and all related services offered by Grippa Sports Planner BV. By using the Grippa platform or creating an account, you agree to these terms.

Article 1 — Definitions

In these terms and conditions the following definitions apply:

Grippa: Grippa Sports Planner BV, based in Amsterdam, registered with the Dutch Chamber of Commerce, trading under the name Grippa, reachable at info@grippa.app.

Platform: Grippa's online software solution (the website, web application and any mobile applications) that allows tennis schools to manage their lessons, trainers, members and planning.

Tennis School: the legal entity or natural person that creates an account on the Platform as an organisation to manage its own tennis activities.

Trainer: a user invited or appointed by the Tennis School who, through the Platform, gives lessons, manages planning or performs administrative tasks.

Player: a natural person who, as a member or student, is invited via the Platform by a Tennis School or signs up to take lessons or lesson packages.

User: any natural or legal person who uses the Platform, including Tennis Schools, Trainers and Players.

Payment Module: the optional functionality of the Platform that allows Players to book and pay for lessons or lesson packages via the Platform. The Payment Module can be used in two variants: (a) with Grippa as intermediary, where payments are received by or on behalf of Grippa and paid out to the Tennis School, or (b) with the Tennis School's own account at an external payment service provider (such as Mollie or Stripe), where payments are received directly by the Tennis School.

Transaction and Service Fees: the fees Grippa charges for use of the Payment Module, consisting of service fees per booked lesson and transaction fees per payment.

Account: the personal registration account through which a User accesses the Platform.

Content: all information, data, photos, texts and other material entered or uploaded by Users via the Platform.

Article 2 — Applicability

  1. These terms apply to all offers, agreements and services between Grippa and the User, and to any use of the Platform.
  2. Any general terms and conditions of the User are expressly not applicable, unless Grippa has agreed to them in writing.
  3. Deviations from these terms are only valid if agreed between the parties in writing.
  4. If one or more provisions of these terms are void or voidable, the remaining provisions remain in full force. In that case the parties will consult to agree on a replacement provision that achieves the original intent as closely as possible.

Article 3 — Account and access

  1. To use the Platform the User must create an Account. The User must provide accurate, complete and up-to-date information.
  2. The Tennis School is responsible for managing the Trainers and Players it invites into its environment on the Platform, and ensures appropriate use by these users.
  3. The User is responsible for handling login credentials carefully and must not share them with third parties. All actions performed through the Account are deemed to have been performed by the User.
  4. If unauthorised use is suspected, the User must report this immediately to info@grippa.app.
  5. Grippa is entitled to refuse, block or remove an Account if the User acts in breach of these terms or applicable law, or if Grippa has reasonable grounds to do so.

Article 4 — Use of the Platform

  1. Grippa grants the User a non-exclusive, non-transferable and revocable right to use the Platform for the duration of the agreement.
  2. The Platform may only be used for its intended purpose: organising, planning and facilitating tennis lessons and related activities.

The User is not permitted to:

  • use the Platform for unlawful or criminal purposes;
  • infringe the intellectual property rights of Grippa or third parties;
  • disrupt, circumvent or interfere with the operation of the Platform, for example through bots, scraping or reverse engineering;
  • make access credentials, accounts or (parts of) the Platform available to third parties;
  • post Content that is discriminatory, offensive, threatening, unlawful or otherwise inappropriate.

Grippa is entitled to remove Content that breaches these terms or applicable law, without being liable to the User.

Article 5 — Fees and payment

5.1 Use of the Platform

Basic use of the Platform is free for Tennis Schools and Trainers. No fixed platform fees apply to creating an Account and managing planning, members and lessons, unless expressly agreed otherwise.

Trainers never pay for use of the Platform.

5.2 Payment Module via Grippa — Grippa as intermediary

  1. When a Tennis School uses the Payment Module via Grippa and a Player books and pays for a lesson or package, the payment is received by or on behalf of Grippa and then paid out to the Tennis School. Grippa charges Transaction and Service Fees on payments processed via the Platform.
  2. The level of Transaction and Service Fees is communicated in advance on the Platform or in a separate agreement. Grippa may adjust fees from time to time; changes are announced at least thirty (30) days before they take effect.
  3. Grippa pays out received amounts, after deduction of Transaction and Service Fees and any reserves, to the Tennis School on a monthly basis. Payout takes place around the first business day of the following calendar month.
  4. A condition for payout is that the Tennis School has provided a correct and verified bank account number (in the name of the Tennis School) on the Platform. Grippa may suspend payouts if there is reasonable doubt about the accuracy of the provided details, in case of suspected fraud or abuse, or in case of an ongoing investigation or dispute.
  5. Grippa is entitled to withhold a reserve of five to ten percent (5–10%) of received payments to cover possible chargebacks, refunds or disputes. The reserve is released after thirty (30) days and paid out with the next monthly payout, to the extent not claimed.
  6. The Tennis School is fully responsible for all refunds, chargebacks and disputes resulting from Player bookings. The amount of a refund or chargeback, plus any costs charged by the payment service provider, is offset against the Tennis School's outstanding balance or invoiced separately.
  7. Grippa may use one or more external payment service providers (such as Mollie or Stripe) for the actual processing of payments. Grippa is not a bank or payment institution and does not hold funds for longer than necessary.
  8. Players only pay for lessons or packages they book via the Payment Module. There are no costs for having a Player account.
  9. The Tennis School remains responsible for correct pricing, VAT remittance and invoicing to its Players, and for maintaining and communicating its own cancellation and refund policy.

5.3 Payment Module with the Tennis School's own PSP account

  1. The Tennis School may choose to connect its own account with an external payment service provider (such as Mollie or Stripe) to the Platform. In that case payments from Players are received directly into the Tennis School's account.
  2. When using an own PSP account, Grippa at no point receives funds from Players. Grippa then acts solely as a technical platform that facilitates the booking and payment request.
  3. The Tennis School is responsible for entering into and maintaining an agreement with the chosen payment service provider, carefully managing API keys and credentials, and for all costs charged by that provider. Grippa is not liable for the acts, omissions, fees or disputes of the payment service provider.
  4. Grippa may also charge a platform or transaction fee for use of the Payment Module when an own PSP account is used.
  5. Refunds, chargebacks and disputes between Player and Tennis School are handled solely between the Tennis School, its payment service provider and the Player when an own PSP account is used. Grippa has no role in this.

5.4 Invoicing

  1. If additional services or paid modules are taken, these are invoiced by Grippa. Invoices must be paid within fourteen (14) days of the invoice date, unless agreed otherwise.
  2. Unless stated otherwise, all amounts mentioned by Grippa are exclusive of VAT.
  3. In case of late payment, the User is in default without further notice and Grippa is entitled to charge statutory (commercial) interest and any collection costs, and to suspend access to the Platform.

Article 6 — Availability and maintenance

  1. Grippa endeavours to keep the Platform available as continuously as possible, but does not guarantee uninterrupted availability or error-free operation.
  2. Grippa is entitled to temporarily take the Platform offline for maintenance, updates, adjustments or improvements. Where possible this will be announced in advance and scheduled outside regular lesson hours.
  3. Grippa may add, change or remove functionality. Substantial changes will be communicated in good time.
  4. Grippa is not liable for damages resulting from interruptions, malfunctions or limitations in the operation of the Platform, except in case of intent or wilful recklessness on the part of Grippa itself.

Article 7 — Intellectual property

  1. All intellectual property rights in the Platform, including but not limited to software, source code, design, logos, texts and databases, belong solely to Grippa or its licensors.
  2. Nothing in these terms transfers any intellectual property right to the User. The User obtains only the right to use as described in Article 4.
  3. Content entered by the User via the Platform (such as member lists, schedules and notes) remains the property of the User. The User grants Grippa a limited right to use this Content, solely to the extent necessary to provide and improve the Platform.
  4. The User is not permitted to use Grippa's trademarks, logos or other identifiers without prior written consent.

Article 8 — Privacy and data processing

  1. Personal data is processed when using the Platform. Grippa processes personal data in accordance with the General Data Protection Regulation (GDPR) and its privacy policy.
  2. To the extent Grippa processes personal data of Players and Trainers on behalf of the Tennis School, Grippa acts as processor and the Tennis School as controller. The parties enter into a data processing agreement for this purpose.
  3. The Tennis School ensures that it is entitled to provide personal data of Trainers and Players to Grippa, and that it informs the data subjects appropriately.
  4. Grippa takes appropriate technical and organisational measures to protect personal data against loss and unauthorised access.

Article 9 — Liability

  1. Grippa is only liable for direct damage that is the direct result of an attributable shortcoming on its part. Any liability for indirect damage, including consequential loss, lost profit, missed turnover, reputational damage and immaterial damage, is expressly excluded.
  2. Grippa's total liability per event (a series of related events counting as one event) is limited to the amount the User has paid to Grippa in the twelve (12) months preceding the event causing the damage, with an absolute maximum of € 5,000.

Grippa is not liable for damage arising from:

  • incorrect, incomplete or untimely data provided by the User;
  • acts or omissions of Trainers, Players or other Users;
  • malfunctions or errors in software, hardware or internet connections of third parties;
  • loss of or damage to Content as a result of actions by the User;
  • disputes between Tennis Schools, Trainers and Players among themselves.
  1. The liability limitations in this article do not apply in case of intent or wilful recklessness on the part of Grippa or its management.
  2. Any claim for damages lapses if it is not reported to Grippa in writing within twelve (12) months after discovery of the damage.

Article 10 — Grippa's role in lessons and payments

  1. Grippa only offers a platform through which Tennis Schools can organise their activities and through which Players can book and, if the Payment Module is used, pay for lessons or packages.
  2. Grippa is not a party to the underlying agreement between a Tennis School and a Player. The Tennis School is responsible for the actual delivery of the booked lessons, its cancellation and refund policy, and communication about them with Players.
  3. Complaints about the content, quality or delivery of lessons must be resolved between the Player and the Tennis School. Grippa may, if desired, play a facilitating role but is not obliged to do so.

Article 11 — Duration and termination

  1. The agreement between Grippa and the Tennis School is entered into for an indefinite period, unless agreed otherwise.
  2. The Tennis School can cancel its Account at any time via the functionality provided in the Platform or by written notice to info@grippa.app.
  3. Grippa can terminate the agreement in writing with a notice period of thirty (30) days.

Grippa is entitled to terminate the agreement with immediate effect or to suspend access if:

  • the User materially breaches these terms;
  • the User has been declared bankrupt, has applied for a moratorium on payments, or ceases its business;
  • Grippa has reasonable suspicion of fraud or abuse.

After termination of the agreement, the Tennis School's Content is retained for a reasonable period, after which it is permanently deleted. The Tennis School is responsible for timely securing its data.

Article 12 — Force majeure

  1. Grippa is not obliged to fulfil any obligation if prevented from doing so by force majeure. Force majeure includes, among other things: failures or outages of the internet, telecommunications infrastructure, power supply, cyber attacks, pandemics, government measures, war or strike.
  2. If a force majeure situation lasts longer than sixty (60) days, both parties are entitled to terminate the agreement in writing, without any right to damages.

Article 13 — Changes to the terms

  1. Grippa is entitled to change or supplement these terms from time to time.
  2. Changes are announced at least thirty (30) days before they take effect via the Platform or by email. If the User does not agree with the changes, the User may terminate the agreement before the effective date.
  3. By continuing to use the Platform after the changes take effect, the User is deemed to have accepted them.

Article 14 — Governing law and disputes

  1. These terms and any agreement between Grippa and the User are governed exclusively by Dutch law.
  2. Disputes arising from or related to these terms or the use of the Platform are submitted exclusively to the competent court of the Amsterdam District Court, unless mandatory law provides otherwise.
  3. Parties will endeavour to first resolve disputes through mutual consultation before submitting them to the court.

Article 15 — Contact

For questions, complaints or comments about these terms or the use of the Platform, please contact Grippa Sports Planner BV at info@grippa.app.

— End of terms and conditions —