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Privacy
Policy

With the following privacy policy we would like to inform you which types of your personal data (hereinafter also abbreviated as "data") we process for which purposes and in which scope. The privacy statement applies to all processing of personal data carried out by us, both in the context of providing our services and in particular on our websites, in mobile applications and within external online presences, such as our social media profiles (hereinafter collectively referred to as "online services").

Last Updated: November 7, 2025

Table of contents

  • • Preamble
  • • Controller
  • • Contact information of the data protection officer
  • • Overview of processing operations
  • • Legal Bases for the Processing
  • • Security Precautions
  • • Transmission of Personal Data
  • • Data Processing in Third Countries
  • • Erasure of data
  • • Use of Cookies
  • • Business services
  • • Payment Service Providers
  • • Provision of online services and web hosting
  • • Registration, Login and User Account
  • • Blogs and publication media
  • • Contact and Inquiry Management
  • • Communication via Messenger
  • • Cloud Services
  • • Newsletter and Electronic Communications
  • • Web Analysis, Monitoring and Optimization
  • • Profiles in Social Networks (Social Media)
  • • Plugins and embedded functions and content
  • • Changes and Updates to the Privacy Policy
  • • Rights of Data Subjects

Preamble

GrainBook is committed to protecting your privacy and ensuring the security of your personal information. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application and services. By using GrainBook, you agree to the collection and use of information in accordance with this policy.

Controller

The controller responsible for data processing is:

GrainBook

Email: contact@thegrainbook.com

Overview of processing operations

The following overview summarizes the types of data processed and the purposes of their processing:

Types of data processed

  • • Account credentials (email address, password)
  • • Content data (YouTube videos, podcasts, newsletters you connect)
  • • Usage data (app interactions, features used)
  • • Device information (device type, operating system)
  • • Saved content and personal notes
  • • AI-generated summaries and insights

Categories of data subjects

  • • Users of our mobile application
  • • Subscribers to our services

Purposes of processing

  • • Providing our core services (content aggregation and AI summarization)
  • • Managing user accounts and authentication
  • • Connecting to third-party content sources (YouTube, podcasts, email)
  • • Generating AI-powered summaries and insights
  • • Storing and organizing your saved content
  • • Improving our services and user experience
  • • Sending service-related notifications

Legal Bases for the Processing

We process your personal data in compliance with applicable data protection regulations, including GDPR and CCPA. The legal bases for processing include:

  • • Consent: When you provide explicit consent for specific processing activities
  • • Contract Performance: Processing necessary to provide our services to you
  • • Legitimate Interests: For improving our services and ensuring security
  • • Legal Obligations: When required by law

Security Precautions

We implement appropriate technical and organizational measures to protect your personal data against unauthorized access, alteration, disclosure, or destruction. These measures include:

  • • Encryption of data in transit and at rest
  • • Secure authentication mechanisms
  • • Regular security assessments and updates
  • • Access controls and monitoring
  • • Employee training on data protection

Transmission of Personal Data

We may share your personal data with third parties only in the following circumstances:

  • • Service Providers: AI processing services, cloud hosting providers, and analytics services that help us operate our app
  • • Content Sources: YouTube, podcast platforms, and email services you choose to connect
  • • Legal Requirements: When required by law or to protect our rights
  • • Business Transfers: In connection with a merger, acquisition, or sale of assets

We ensure that all third parties are bound by appropriate data protection agreements and process your data only as instructed.

Data Processing in Third Countries

Some of our service providers may be located outside your country of residence. When we transfer data internationally, we ensure appropriate safeguards are in place, such as Standard Contractual Clauses approved by relevant authorities, to protect your personal data.

Erasure of data

We retain your personal data only for as long as necessary to fulfill the purposes outlined in this Privacy Policy or as required by law. You can request deletion of your account and associated data at any time. Upon deletion:

  • • Your account and profile information will be permanently deleted
  • • Your saved content and notes will be removed
  • • Connected third-party integrations will be disconnected
  • • Some data may be retained for legal or security purposes as required by law

Use of Cookies

Our mobile application may use cookies and similar technologies to enhance user experience, maintain sessions, and analyze usage patterns. You can manage cookie preferences through your device settings.

Registration, Login and User Account

To use GrainBook, you need to create an account. During registration, we collect:

  • • Email address (for account creation and communication)
  • • Password (encrypted and securely stored)
  • • Optional profile information

You are responsible for maintaining the confidentiality of your account credentials and for all activities that occur under your account.

Multi-Source Content Integration

GrainBook allows you to connect various content sources:

YouTube Integration

When you connect your YouTube account, we access your subscriptions and video metadata to provide summaries. We do not store your YouTube credentials; authentication is handled securely through OAuth.

Podcast Integration

We collect information about podcasts you follow to aggregate episodes and generate summaries. No personal listening data is shared with third parties.

Email Newsletter Integration

When you connect email newsletters, we access only the newsletters you specify. We do not read your personal emails or share your email credentials.

AI-Powered Summaries

GrainBook uses artificial intelligence to generate summaries and insights from your content sources. This processing:

  • • Analyzes content from your connected sources
  • • Generates personalized summaries and key insights
  • • Stores summaries in your personal library
  • • Does not share your content or summaries with other users
  • • May use aggregated, anonymized data to improve AI models

Cloud Services

We use secure cloud infrastructure to store and process your data. All data is encrypted and stored in compliance with industry standards. Our cloud providers are carefully selected based on their security practices and data protection compliance.

Newsletter and Electronic Communications

We may send you service-related notifications, updates, and promotional communications. You can opt out of promotional emails at any time, but service-related communications are necessary for account management.

Web Analysis, Monitoring and Optimization

We use analytics tools to understand how users interact with our app, identify issues, and improve performance. This data is collected in aggregate form and does not personally identify individual users.

Rights of Data Subjects

Under applicable data protection laws, you have the following rights:

  • • Right of Access: Request information about the personal data we hold about you
  • • Right to Rectification: Request correction of inaccurate or incomplete data
  • • Right to Erasure: Request deletion of your personal data
  • • Right to Restriction: Request limitation of processing in certain circumstances
  • • Right to Data Portability: Receive your data in a structured, machine-readable format
  • • Right to Object: Object to processing based on legitimate interests
  • • Right to Withdraw Consent: Withdraw consent at any time where processing is based on consent
  • • Right to Lodge a Complaint: File a complaint with a supervisory authority

To exercise any of these rights, please contact us at contact@thegrainbook.com. We will respond to your request within the timeframe required by applicable law.

Changes and Updates to the Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or legal requirements. We will notify you of any material changes through the app or via email. The "Last Updated" date at the top of this policy indicates when it was last revised. Your continued use of GrainBook after changes are posted constitutes your acceptance of the updated policy.

Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us:

Email: contact@thegrainbook.com

We are committed to resolving any privacy concerns you may have and will respond to your inquiries promptly.

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