1. Acceptance of Terms

By accessing or using Zero Charts (zerocharts.com.br), you confirm that you have read, understood, and agreed to these Terms of Service ('Terms'). If you do not agree with any part of these Terms, please do not use the platform.

Zero Charts is available globally and these Terms apply to all users regardless of their country of residence. Mandatory local consumer protection laws that cannot be waived by contract continue to apply.

2. Description of the Service

Zero Charts is a platform for music lovers who want to track and visualize their listening habits. Through integration with Last.fm, the service provides:

• Weekly charts listing your most-listened artists, songs, and albums;

• Historical view of your musical evolution over time;

• Statistics, curiosities, and a real-time Live Chart;

• Certificates and plaques for milestone tracks and albums;

• Access to premium features through a subscription plan.

3. Subscriptions and Payments

3.1 Payment Processing via Paddle

All subscriptions and payments on Zero Charts are processed by Paddle.com Market Limited ('Paddle'), acting as the Merchant of Record. This means:

• Your purchase contract is with Paddle, not directly with Zero Charts;

• Paddle is responsible for billing, receipts, refunds, and local tax compliance (including VAT/GST as applicable in your jurisdiction);

• Payment data (credit card details, etc.) is collected and stored exclusively by Paddle — Zero Charts does not store your payment information;

• Paddle's own Terms of Service and Privacy Policy apply to payment processing.

3.2 Subscriptions and Renewal

Subscriptions renew automatically at the start of each billing period. You may cancel at any time before your renewal date via the Paddle subscriber portal. Cancellations do not generate a pro-rata refund for the current period, except where required by applicable law.

3.3 Refunds

Refund requests are handled by Paddle. EU and UK users have a 14-day right of withdrawal for digital purchases, unless access to the digital content begins before that period with your express consent. Additional refund rights may apply under your local consumer protection law.

4. Account Registration

4.1 Requirements

You must have an active Last.fm account to use Zero Charts. Registration requires authorizing Zero Charts to access your Last.fm account and providing an email address and password specific to Zero Charts.

4.2 User Responsibilities

• Provide accurate and up-to-date information;

• Keep your password confidential and do not share it;

• Notify us immediately if you suspect unauthorized access to your account;

• Be responsible for all activity that occurs under your account.

5. Acceptable Use

You agree not to use the platform to:

• Engage in any illegal or unauthorized activity;

• Gain unauthorized access to systems, servers, or networks;

• Interfere with or disrupt the platform's operation;

• Reverse engineer or attempt to extract the source code;

• Use bots or automated scripts to access the service in unintended ways;

• Create multiple accounts to circumvent restrictions or limitations.

6. Third-Party Integrations

Zero Charts relies on the Last.fm API to function. By using our platform, you acknowledge that:

• Last.fm's collection and use of your data is governed by Last.fm's own Privacy Policy and Terms;

• Zero Charts is not responsible for Last.fm API failures, unavailability, or changes;

• Revoking Zero Charts' access to your Last.fm account will prevent chart generation or updates.

7. Intellectual Property

All content on the platform — including source code, design, logos, text, and features — belongs to Zero Charts or its licensors. You are granted a limited, non-exclusive, non-transferable, revocable license to access and use the platform for personal, non-commercial purposes only.

8. Limitation of Liability

The service is provided 'as is' and 'as available' without warranties of any kind. Zero Charts is not liable for service interruptions, data inaccuracies from Last.fm, or any direct or indirect damages arising from use or inability to use the platform.

Nothing in these Terms excludes liability that cannot be excluded by law, including statutory consumer guarantees available under applicable local legislation.

9. Dispute Resolution and Governing Law

These Terms are governed by the laws of Brazil. Users in other countries may also benefit from mandatory protections under their local law that cannot be waived by contract.

For EU users: consumer disputes may be submitted to the EU Online Dispute Resolution platform at ec.europa.eu/odr. For UK users: you may contact the relevant UK authority or use alternative dispute resolution services. For Brazilian users: the Consumer Protection Code (Law 8,078/1990), the Internet Civil Framework (Law 12,965/2014), and the LGPD (Law 13,709/2018) apply.

We will always attempt to resolve disputes amicably before pursuing formal legal action.

10. Changes to These Terms

We may update these Terms at any time. Changes take effect upon publication on the platform. For material changes, we will provide reasonable advance notice. Continued use of the platform after changes constitutes acceptance of the updated Terms.

11. Contact

For questions about these Terms, visit zerocharts.com.br or use the contact channels available on the platform.