Privacy Policy

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PRIVACY POLICY

Last updated: February 22, 2026

In the event of any discrepancy between the Greek and English versions of these Terms of Use, the English version shall prevail.

This Privacy Notice for __________ ("we," "us," or "our"), describes how and why we might access, collect, store, use, and/or share ("process") your personal information when you use our services ("Services"), including when you:

Visit our website at https://www.thalisapp.com or any website of ours that links to this Privacy Notice.
Download and use our mobile application (Thalis), or any other application of ours that links to this Privacy Notice.
Engage with us in other related ways, including any marketing or events.

Questions or concerns? Reading this Privacy Notice will help you understand your privacy rights and choices. We are responsible for making decisions about how your personal information is processed. If you do not agree with our policies and practices, please do not use our Services.

SUMMARY OF KEY POINTS

This summary provides key points from our Privacy Notice, but you can find out more details about any of these topics by using our table of contents below.

What personal information do we process? When you visit, use, or navigate our Services, we may process personal information depending on how you interact with us and the Services, the choices you make, and the products and features you use.
Do we process any sensitive personal information? We do not process sensitive personal information.
Do we collect any information from third parties? We do not collect any information from third parties.
How do we process your information? We process your information to provide, improve, and administer our Services, communicate with you, for security and fraud prevention, and to comply with law. We may also process your information for other purposes with your consent. We process your information only when we have a valid legal reason to do so.
In what situations and with which types of parties do we share personal information? We may share information in specific situations and with specific categories of third parties.
How do we keep your information safe? We have adequate organisational and technical processes and procedures in place to protect your personal information. However, no electronic transmission over the internet or information storage technology can be guaranteed to be 100% secure.
What are your rights? Depending on where you are located geographically, the applicable privacy law may mean you have certain rights regarding your personal information.
How do you exercise your rights? The easiest way to exercise your rights is by submitting a data subject access request, or by contacting us.

WHAT INFORMATION DO WE COLLECT?
HOW DO WE PROCESS YOUR INFORMATION?
WHAT LEGAL BASES DO WE RELY ON TO PROCESS YOUR PERSONAL INFORMATION?
WHEN AND WITH WHOM DO WE SHARE YOUR PERSONAL INFORMATION?
DO WE USE COOKIES AND OTHER TRACKING TECHNOLOGIES?
DO WE OFFER ARTIFICIAL INTELLIGENCE-BASED PRODUCTS?
HOW LONG DO WE KEEP YOUR INFORMATION?
HOW DO WE KEEP YOUR INFORMATION SAFE?
WHAT ARE YOUR PRIVACY RIGHTS?
CONTROLS FOR DO-NOT-TRACK FEATURES
DO WE MAKE UPDATES TO THIS NOTICE?
HOW CAN YOU CONTACT US ABOUT THIS NOTICE?
HOW CAN YOU REVIEW, UPDATE, OR DELETE THE DATA WE COLLECT FROM YOU?

1. WHAT INFORMATION DO WE COLLECT?

Personal information you disclose to us In Short: We collect personal information that you provide to us.

We collect personal information that you voluntarily provide to us when you register on the Services, express an interest in obtaining information about us or our products and Services, when you participate in activities on the Services, or otherwise when you contact us.

Personal Information Provided by You. The personal information that we collect depends on the context of your interactions with us and the Services, the choices you make, and the products and features you use. The personal information we collect may include the following:

names
email addresses
usernames
passwords
billing addresses
debit/credit card numbers
educational level or school grade
academic performance and educational progress data
test results, assignments, and questionnaire responses

Data of Minors and Parental Consent. If you are under the age of 15 (the age of digital consent in Greece), you must have your parent or legal guardian's permission to use our Services. For minor users, we require a parent or legal guardian to create the account and provide explicit consent for the processing of the child's personal data, in strict compliance with Article 8 of the GDPR.

Sensitive Information. We do not process sensitive information.

Payment Data. We may collect data necessary to process your payment if you choose to make purchases. All payment data is handled and stored by Stripe. You may find their privacy notice link(s) here: https://stripe.com/gb/privacy.

Application Data. If you use our application(s), we also may collect the following information if you choose to provide us with access or permission:

Mobile Device Data. We automatically collect device information, operating system, device and application identification numbers, browser type, IP address, and information about the features of our application(s) you accessed.
Push Notifications. We may request to send you push notifications regarding your account or certain features. You may turn them off in your device's settings.

Information automatically collected In Short: Some information — such as your Internet Protocol (IP) address and/or browser and device characteristics — is collected automatically when you visit our Services.

We automatically collect certain information when you visit, use, or navigate the Services. This information does not reveal your specific identity but may include device and usage information, such as your IP address, browser and device characteristics, operating system, language preferences, referring URLs, device name, country, location, and information about how and when you use our Services.

The information we collect includes:

Log and Usage Data. Diagnostic, usage, and performance information our servers automatically collect when you access or use our Services.
Device Data. Information about your computer, phone, tablet, or other device you use to access the Services.
Location Data. Information about your device's location, which can be either precise or imprecise.

2. HOW DO WE PROCESS YOUR INFORMATION?

In Short: We process your information to provide, improve, and administer our Services, communicate with you, for security and fraud prevention, and to comply with law.

We process your personal information for a variety of reasons, including:

To facilitate account creation and authentication and otherwise manage user accounts.
To request feedback.
To save or protect an individual's vital interest.

3. WHAT LEGAL BASES DO WE RELY ON TO PROCESS YOUR INFORMATION?

In Short: We only process your personal information when we believe it is necessary and we have a valid legal reason to do so under applicable law.

The General Data Protection Regulation (GDPR) and UK GDPR require us to explain the valid legal bases we rely on in order to process your personal information:

Consent. We may process your information if you have given us permission to use your personal information for a specific purpose.
Legitimate Interests. We may process your information when we believe it is reasonably necessary to achieve our legitimate business interests.
Legal Obligations. We may process your information where we believe it is necessary for compliance with our legal obligations.
Vital Interests. We may process your information where we believe it is necessary to protect your vital interests or the vital interests of a third party.

4. WHEN AND WITH WHOM DO WE SHARE YOUR PERSONAL INFORMATION?

In Short: We may share information in specific situations described in this section and/or with the following categories of third parties.

Vendors, Consultants, and Other Third-Party Service Providers. We may share your data with third-party vendors who perform services for us. They cannot do anything with your personal information unless we have instructed them to do it. The categories of third parties we may share personal information with are as follows:

Data Analytics Services
Data Storage Service Providers
Payment Processors
Performance Monitoring Tools
Website Hosting Service Providers
User Account Registration & Authentication Services

We also may need to share your personal information during Business Transfers (e.g., mergers, acquisitions).

5. DO WE USE COOKIES AND OTHER TRACKING TECHNOLOGIES?

In Short: We may use cookies and other tracking technologies to collect and store your information.

We may use cookies and similar tracking technologies to gather information when you interact with our Services. We also permit third parties to use online tracking technologies on our Services for analytics and advertising. Specific information is set out in our Cookie Notice.

Google Analytics: We may share your information with Google Analytics to track and analyse the use of the Services.

6. DO WE OFFER ARTIFICIAL INTELLIGENCE-BASED PRODUCTS?

In Short: We offer products, features, or tools powered by artificial intelligence, machine learning, or similar technologies.

As part of our Services, we offer products powered by AI. We provide these through third-party service providers, including Groq, OpenAI and Google Cloud AI. All personal information processed using our AI Products is handled in line with our Privacy Notice and our agreement with third parties.

7. HOW LONG DO WE KEEP YOUR INFORMATION?

In Short: We keep your information for as long as necessary to fulfil the purposes outlined in this Privacy Notice unless otherwise required by law.

We will only keep your personal information for as long as it is necessary for the purposes set out in this Privacy Notice. Specifically, user account data and educational records will be retained for a maximum period of two (2) years following the expiration of your service contract or documented account inactivity, unless a longer retention period is required or permitted by law (such as tax, accounting, or other legal requirements).

8. HOW DO WE KEEP YOUR INFORMATION SAFE?

In Short: We aim to protect your personal information through a system of organisational and technical security measures.

We have implemented appropriate technical and organisational security measures. However, no electronic transmission over the Internet can be guaranteed to be 100% secure.

9. WHAT ARE YOUR PRIVACY RIGHTS?

In Short: In some regions, such as the European Economic Area (EEA), United Kingdom (UK), and Switzerland, you have rights that allow you greater access to and control over your personal information.

Depending on your region, you have the right to request access to, rectify, erase, or restrict the processing of your personal information. You also have the right to complain to your local data protection authority. If you are located in Greece and you believe we are unlawfully processing your personal information, you have the right to complain to the Hellenic Data Protection Authority (ΑΠΔΠΧ). You can contact them using the following details:

Address: Kifissias 1-3, PC 115 23, Athens, Greece
Telephone: +30 210 6475600
Email: contact@dpa.gr
Website: www.dpa.gr

Withdrawing your consent: If we are relying on your consent to process your personal information, you have the right to withdraw your consent at any time.

Account Information: If you would at any time like to review or change the information in your account or terminate your account, you can log in to your account settings.

10. CONTROLS FOR DO-NOT-TRACK FEATURES

Most web browsers include a Do-Not-Track ("DNT") feature. At this stage, no uniform technology standard for recognising and implementing DNT signals has been finalised. As such, we do not currently respond to DNT browser signals.

11. DO WE MAKE UPDATES TO THIS NOTICE?

In Short: Yes, we will update this notice as necessary to stay compliant with relevant laws.

We may update this Privacy Notice from time to time. We encourage you to review this Privacy Notice frequently.

12. HOW CAN YOU CONTACT US ABOUT THIS NOTICE?

If you have questions or comments about this notice, you may email us at contact@thalisapp.com or contact us by post at:

13. HOW CAN YOU REVIEW, UPDATE, OR DELETE THE DATA WE COLLECT FROM YOU?

Based on the applicable laws of your country, you may have the right to request access to, correct, or delete your personal information. To request to review, update, or delete your personal information, please submit a data subject access request.