Terms of Service

1. Who operates the service

The GrataQ service is operated by Grata Luma, s.r.o., company ID 29492599, with its registered office at Příčná 1892/4, Nové Město, 110 00 Prague 1, Czech Republic, registered in the Commercial Register maintained by the Municipal Court in Prague, Section C, File 446685 (hereinafter the "provider"). Contact: hello@grataq.com.

2. What the service does

GrataQ allows the recipient (the user of the application) to receive files from third parties (senders) via a link. The content of the files is encrypted on the sender's side, and the provider has no access to it. A detailed description of how it works is on the home page.

3. Account and identity

• An account is created by generating a cryptographic identity in your application. We do not use a password or email login.
• You are responsible for your key (identity) and its backup. If the key is lost without a backup, access to previously received files cannot be restored — the provider does not hold the key and cannot recover it.
• The service may be used by persons over 18 years of age, or by authorized representatives of organizations.

4. Plans and payments

• The available plans and their limits are described in the pricing. The free plan is intended for trial use, not for production operation.
• The application and paid subscriptions are obtained exclusively through the Microsoft Store. The purchase, payment, and VAT are handled by Microsoft as the merchant of record under the Microsoft Store terms; a contractual relationship regarding the purchase therefore also arises with Microsoft.
• The prices stated in the pricing correspond to the prices in the Microsoft Store and are inclusive of VAT. Payment is monthly; the plan can be changed or canceled at any time in the Microsoft Store, and the change takes effect from the next period. The provider may change prices in the future; such a change will not affect a period already paid for.
• Withdrawal and refunds are governed by the Microsoft Store rules and the applicable legal regulations.

5. Rules of use

Because the provider does not see the content of the files, the user bears responsibility for their content and lawfulness. In particular, you must not use the service to:

• transmit content that violates legal regulations or the rights of third parties;
• distribute malicious code (malware) or for phishing;
• engage in conduct that harms the operation of the service (e.g., circumventing limits, automated flooding, attempts to breach security);
• carry out activities contrary to good morals or applicable laws.

In the event of a breach of these rules, the provider may restrict or terminate access to the service.

6. Availability of the service

We strive for maximum availability; however, we provide the service "as is". For the free plan, we do not guarantee any level of availability (SLA). The guaranteed level of availability for the Enterprise plan is agreed individually. Operation may be limited due to maintenance, updates, or for reasons beyond our control.

7. Limitation of liability

• The provider is not liable for the content of transmitted files or for their possible loss after the expiry of the retention period applicable to the plan.
• The provider is not liable for damage arising from the loss of the user's cryptographic key that the provider did not cause.
• The provider's liability is governed by the applicable regulations; to the extent permitted by law, it is limited to the amount of the price paid for the last billing period.

8. Protection of personal data

The processing of personal data is governed by a separate Privacy Policy, which forms an integral part of these terms.

9. Termination

The user may terminate use of the service at any time by deleting the account in the application. The provider may terminate the agreement in the event of a breach of these terms or for operational reasons with reasonable advance notice. After termination, data is deleted in accordance with the privacy policy.

10. Changes to the terms

We may update these terms. The current version is always on this page, stating the effective date. We will inform users of material changes; by continuing to use the service, you express your consent to the new version.

11. Governing law

These terms and the relationships arising from them are governed by the law of the Czech Republic. Any disputes will be resolved before the substantively and locally competent courts of the Czech Republic.