Privacy Policy

Your rights as a user of our services

You have the right to information, correction, blocking or deletion of your data at any time. Any given consent can be revoked at any time and you may partially object to the processing of your data, even if no consent was required from you for the processing. You can contact our team for further information about data protection at

Data we collect about you

On the one hand, your data is captured because you communicate it to us. This may, for example, be data that you enter in our contact form. Other data is collected automatically when visiting the website through our IT systems. These are above all technical data (e.g. Internet browser, operating system or time of the page request). The collection of this data is automatic as soon as you visit our platform.

  • Registration Information: When you register for Summerian (for our free offer, paid subscription, or use of a code), we collect the personal information that you voluntarily provide to us when registering through your access device, except for your passwords.
  • Mobile Advertising ID: If not disabled by the user, we collect the Mobile Advertising ID provided by your mobile device. If you do not want us to collect this Mobile Advertising ID, you can always disable or change this on your device. Please see this manual for iOS devices and this manual for Android devices.
  • Cookies: For the provision of the Summerian service and to make our offer more user-friendly, effective and secure, we also use so-called cookies for data collection and storage. Cookies are small data packets that are stored on your device and do no harm.
  • Tracking Services: We use tracking services to collect information about the behavior of visitors to our pages. So we can ensure an optimal user experience. These services use pseudonymous user profiles with the help of cookies, so that a direct inference to persons is not possible. Of course you can contradict the creation of these profiles at any time. Incidentally, each access device can be configured in such a way that basically no cookies can be created at all, or they can be deleted directly after the session.
  • Newsletter: When you sign up for our newsletter, your email address will be used for information on advertising purposes. Of course, this is voluntary and you can even unsubscribe at any time.

How we collect your data

We collect your data in three different ways:

  • automated when you visit our website
  • through cookies
  • through your voluntary input on our web-based application or on the mobile version

Your data is stored pseudonymously on our Firebase server and also servers of third-party vendors in whom we trust and with whom we share for the most seamless synchronization between devices. We have legal contracts with these third-party vendors to protect your personal data.

What we use your data for

The main purpose of storing your data is to provide you with a seamless experience on all devices. For example, we will save the current progress on a book summary, your preference for the font and line height, so the next time you open the app or read it on another device, you can have the very same settings in place.

As we are constantly improving ourselves and offering you optimized services, data in pseudonymous form (through usage profiles) are also needed for advertising, improving and personalizing the app experience for each user and discovering errors. Of course, this can be contradicted at any time.

In certain circumstances, we’ll require your usage data to improve the customer service i.e. identifying and fixing the bugs that you encounter.

Lastly, we’ll use your data to send periodic emails about new features, offerings, obtain your feedback, or just keep you up to date with what’s going on with the product.

Note: If at any time you would like to unsubscribe from receiving future emails, we include detailed unsubscribe instructions at the bottom of each email.


All data and information transmitted through the Service is secured by SSL protocol

How we work with partners

We do not sell, trade, or otherwise transfer to outside parties your personally identifiable information. This does not include trusted third parties who are GDPR-compliant and assist us in operating our website, conducting our business, or servicing you, so long as those parties agree to keep this information confidential. We may also release your information when we believe release is appropriate to comply with the law, enforce our site policies, or protect ours or others rights, property, or safety.

Below is a list of our partners:

  • Google Firebase

    Google Firebase is a comprehensive app development platform provided by Google. Our server is hosted on Google Firebase so your data will also be collected and protected by this third party according to their privacy policy.

  • Amplitude

    Amplitude is a cloud-based product-analysis platform that helps us collect and analyze your in-app data to design and optimize your experience. Your data is collected and protected by this third party according to their privacy policy.

  • Paddle

    Paddle is a gateway payment platform that helps you purchase Summerian via the web-based version. Your purchase information is collected and protected by this third party according to their privacy policy.

  • Use of your data for other purposes

    In addition to the purposes already mentioned, we are also subject to legal requirements. These are:

    • any request for information (and the related disclosure) to governmental authorities
    • any request for information (and the related disclosure) to copyright holders
    • for the misuse recognition of our provided services
    • trouble-shooting or -avoidance


We reserve the right, at our sole discretion, to modify or replace these Terms at any time. If a revision is material we will provide at least 30 days’ notice prior to any new terms taking effect. What constitutes a material change will be determined at our sole discretion.

When our Terms of Use changes, we will notify you via your email or any contact information you voluntarily provided us.

By continuing to access or use our Service after any revisions become effective, you agree to be bound by the revised terms. If you do not agree to the new terms, you are no longer authorized to use the Service.

Contact Us

If you have any questions about the Privacy Policy, please contact us by sending an email to