Terms & Legal

Last updated: May 2026

1. Terms of Service

1.1 Agreement

Polyletter is operated by Tobias Schnuphase ("Polyletter", "we", "us", or "our"). These Terms of Service ("Terms") govern your access to and use of the Polyletter website and newsletter service (collectively, the "Service").

By creating an account or using the Service, you agree to be bound by these Terms. If you do not agree, please discontinue use of the Service immediately. We may update these Terms from time to time. Material changes will be communicated via email or a notice on the website. Continued use of the Service after changes are posted constitutes your acceptance of the updated Terms.

1.2 Description of Service

Polyletter is an AI-powered newsletter aggregation service that delivers personalized email briefings to subscribers. You can compose your own Polyletter from modular content blocks, choosing what you receive and when. The Service is provided free of charge during the current phase of operation.

We make no guarantee that the Service will be available at all times, error-free, or that any specific content will be included in any given edition. We reserve the right to modify, suspend, or discontinue the Service (or any part thereof) at any time, with or without notice.

1.3 Accounts

To use certain features of the Service, you must create an account. You agree to provide accurate and complete information and to keep it up to date. You are responsible for maintaining the confidentiality of your login credentials and for all activity that occurs under your account. Please notify us immediately at contact@polyletter.com if you suspect unauthorized use of your account.

We reserve the right to suspend or terminate accounts that violate these Terms, are inactive for an extended period, or for any other reason at our discretion with reasonable notice.

1.4 Intellectual Property

All content, design, code, and materials on Polyletter — including but not limited to the name, logo, newsletter structure, and AI-generated summaries — are owned by or licensed to Polyletter and are protected by applicable copyright and intellectual property law.

You are granted a limited, non-exclusive, non-transferable, revocable license to access and use the Service for your own personal, non-commercial purposes. You may not reproduce, distribute, modify, or create derivative works from any content on the Service without our prior written consent.

Newsletter content delivered to you is for your personal use only. You may not republish, forward commercially, or use AI tools to systematically extract and repurpose our content without express written permission.

1.5 Acceptable Use

You agree to use the Service only for lawful purposes and in accordance with these Terms. The following activities are prohibited:

• Using the Service for any unlawful, fraudulent, or harmful purpose
• Attempting to gain unauthorized access to any part of the Service or its infrastructure
• Using automated tools (bots, scrapers, crawlers) to access or extract content without our express written consent
• Using content from the Service to train, fine-tune, or otherwise improve AI or machine learning models without our express written consent
• Impersonating another person or entity
• Interfering with or disrupting the integrity or performance of the Service
• Creating multiple accounts to circumvent restrictions or abuse the Service

1.6 Third-Party Content & Links

The Service aggregates and summarizes content from third-party sources. We do not endorse, warrant, or take responsibility for the accuracy, completeness, or legality of any third-party content referenced or summarized in your Polyletter. Links to external websites are provided for convenience; we have no control over and accept no liability for the content of those sites.

1.7 Disclaimer & Limitation of Liability

The Service is provided "as is" and "as available" without warranties of any kind, express or implied. We do not warrant that the Service will be uninterrupted, error-free, or free of viruses or other harmful components.

To the extent permitted by applicable law, Polyletter shall not be liable for any indirect, incidental, special, or consequential damages arising from your use of or inability to use the Service. Our total liability to you for any claim arising out of or relating to these Terms or the Service shall not exceed the amounts you have paid us in the twelve (12) months preceding the claim (or €0 if the Service is free at the time of the claim).

Nothing in these Terms limits or excludes our liability for death or personal injury caused by negligence, fraud, or any other liability that cannot be excluded under applicable German or EU law. Your statutory rights as a consumer under German law (BGB) and EU consumer protection law remain unaffected by these Terms.

1.8 Governing Law & Dispute Resolution

These Terms are governed by the laws of the Federal Republic of Germany, excluding its conflict of law provisions. If you are a consumer residing in the EU, you additionally benefit from any mandatory provisions of the law of the country in which you reside.

We encourage you to contact us first at contact@polyletter.com to resolve any dispute informally. If we are unable to reach a resolution, disputes shall be subject to the jurisdiction of the competent courts in Leipzig, Germany — unless mandatory consumer protection law in your country of residence requires otherwise.

The European Commission provides an online dispute resolution platform for consumers at ec.europa.eu/consumers/odr. We are not obligated to participate in dispute resolution proceedings before a consumer arbitration board, but we are willing to do so in individual cases.

1.9 Termination

You may stop using the Service and delete your account at any time. We reserve the right to suspend or terminate your access to the Service at any time, with or without cause, with reasonable prior notice where practicable. Upon termination, your right to use the Service ceases immediately. Provisions of these Terms that by their nature should survive termination (including intellectual property, disclaimers, and governing law) shall do so.

1.10 Miscellaneous

If any provision of these Terms is found to be invalid or unenforceable, the remaining provisions will continue in full force and effect. Our failure to enforce any right or provision of these Terms will not be deemed a waiver of that right or provision. These Terms, together with our Privacy Policy, constitute the entire agreement between you and Polyletter regarding your use of the Service.

2. Privacy Policy

2.1 Privacy at a Glance

The following notes provide a simple overview of what happens to your personal data when you visit this website. Personal data is any data that can be used to identify you personally.

Who is responsible for data collection? Data processing on this website is carried out by the website operator. Contact details can be found in section 5.

How do we collect your data? Some data is collected when you provide it to us directly (e.g. via a contact form or newsletter sign-up). Other data is collected automatically when you visit the website — primarily technical data such as browser type, operating system, or time of access.

What do we use your data for? Data is used to ensure the error-free provision of the website, to deliver the newsletter you subscribed to, and to analyze usage behavior where applicable.

Your rights: You have the right to receive free information about the origin, recipient, and purpose of your stored personal data, and to request its correction or deletion at any time. You may also revoke any consent you have given, request restriction of processing, and lodge a complaint with the competent supervisory authority.

2.2 Hosting

This website is hosted by Vercel Inc., 440 N Barranca Avenue #4133, Covina, CA 91723, United States. Processing is based on Art. 6(1)(b) and (f) GDPR. We have concluded a Data Processing Agreement (DPA) with Vercel.

User accounts, subscription data, and newsletter preferences are stored by Supabase, Inc., 970 Toa Payoh North #07-04, Singapore 318992. Data is stored on servers within the EU (AWS eu-west region). Processing is based on Art. 6(1)(b) and (f) GDPR. We have concluded a DPA with Supabase. See supabase.com/privacy.

Newsletter and transactional emails are delivered by Resend, Inc., 2261 Market Street #5039, San Francisco, CA 94114, United States. Your email address is transmitted to Resend solely for delivery purposes. Processing is based on Art. 6(1)(b) and (f) GDPR. As a US-based provider, data transfer is covered by Standard Contractual Clauses (SCCs) pursuant to Art. 46(2)(c) GDPR. We have concluded a DPA with Resend. See resend.com/privacy.

2.3 Controller

Tobias Schnuphase · 04317 Leipzig · Germany Email: contact@polyletter.com

2.4 Your Rights (GDPR)

Under applicable law you have the right to: access your stored personal data (Art. 15 GDPR) · request rectification (Art. 16 GDPR) · request erasure (Art. 17 GDPR) · request restriction of processing (Art. 18 GDPR) · data portability (Art. 20 GDPR) · object to processing (Art. 21 GDPR) · lodge a complaint with a supervisory authority (Art. 77 GDPR). To exercise any of these rights, contact us at contact@polyletter.com.

Where processing is based on your consent, you may revoke it at any time without affecting the lawfulness of processing carried out before the revocation.

2.5 Newsletter

When you subscribe to our newsletter, we collect your email address and use a double opt-in process to confirm your consent (Art. 6(1)(a) GDPR). We store your email address until you unsubscribe. You can unsubscribe at any time via the link included in every email. After unsubscribing, your address may be retained in a blocklist to prevent future accidental mailings (Art. 6(1)(f) GDPR).

2.6 Analytics (PostHog)

With your consent, this website uses PostHog (PostHog, Inc., 965 Mission Street, Suite 100, San Francisco, CA 94103, United States) to analyze how the website is used. PostHog collects data such as pages visited, session duration, browser type, and general device information. This data is used solely to improve Polyletter and is not shared with third parties.

Analytics are only activated after you have given your explicit consent via the cookie banner (§ 25(1) TTDSG, Art. 6(1)(a) GDPR). If you decline or withdraw consent, PostHog cookies are automatically cleared and no tracking takes place. You can change your preferences at any time via the cookie settings.

Data is processed on PostHog servers located within the European Union. No transfer to third countries takes place. For more information, see posthog.com/privacy.

2.7 SSL/TLS Encryption & Storage Duration

This site uses SSL/TLS encryption. Your personal data is stored only as long as necessary for the purpose it was collected, or as required by applicable law. Once the purpose no longer applies and no legal retention obligation exists, your data will be deleted.

3. Cookie Policy

This website uses cookies — small data packages stored on your device. We distinguish between two categories:

Necessary cookies are required for the website to function (e.g. session management and authentication). They are always active and stored on the basis of Art. 6(1)(f) GDPR. No consent is required.

Analytics cookies (PostHog, prefixed _ph_) are only set after your explicit consent via the cookie banner. You can withdraw consent at any time via the cookie settings — all analytics cookies will be cleared immediately upon withdrawal.

No advertising or third-party marketing cookies are used on this website.

4. Disclaimer

Content: The content of this website has been compiled with careful attention. However, we cannot guarantee the accuracy, completeness, or timeliness of the information provided. As a service provider, we are responsible for our own content under general law (§ 7(1) TMG). We are not obligated to monitor transmitted or stored third-party information.

External links: Our website contains links to external websites. We have no influence over the content of those sites and therefore cannot accept any liability for them. The respective providers or operators of linked pages are always responsible for their content.

Copyright: Content and works created by the site operators are subject to German copyright law. Reproduction, editing, distribution, or any use beyond the scope of copyright law requires the prior written consent of the respective author or creator.

5. Contact

For any legal inquiries please contact us at contact@polyletter.com