Privacy Policy

Dexico is an AI-powered study platform for secondary school students. In this policy, "Dexico", "we" and "us" mean the Dexico service and the team that runs it. You can reach us at info@dexico.org or by post at Bilkent University Building 75, Çankaya, Ankara, Türkiye.

When you create an account, we collect your email address and basic account information, such as your name, curriculum and school year.

As you use Dexico, we collect:

• study content you create, such as notes, essays and chats with our AI tutors
• progress data, such as XP, questions answered, practice results and room activity
• tutor memory: short notes about your studies, so your tutor can continue where you left off. You can view and delete these notes in Settings (see section 5)
• standard usage information, such as device type, app version, time zone and timestamps

If you buy a subscription, payments are handled by our payment provider, Paddle.com, which is the Merchant of Record for our orders and processes your payment details under its own privacy policy. We do not store your full card details. From Paddle we keep what we need to run your plan: its status, dates, price, and Paddle's ids for you and your subscription.

We use your information to:

• run Dexico for you, including syncing your progress across devices
• generate AI tutoring responses and personalise them to your learning
• recommend questions and topics that suit your level
• keep Dexico secure and prevent misuse
• understand how Dexico is used so we can improve it
• contact you about your account or important changes to the Service

We do not sell your personal information, and we do not use it for advertising.

To generate responses, the messages and study content you submit, together with relevant tutor memory notes, are processed by third-party AI providers, such as Anthropic, OpenAI and xAI. These providers process the data on our behalf and are bound by their own privacy and data-handling terms. We do not send your name or email address to AI providers along with your study content.

Dexico does not use automated decision-making or profiling that has legal or similarly significant effects on you.

Dexico's tutors can remember things about your learning, so they can pick up where you left off instead of starting from zero every time. Memory is shared between all of your tutors, so something you tell one tutor can help another. Each note shows which tutor picked it up.

Who can see your memory

Only you and your own Dexico tutors. Your memory is never shown to other users, never sold and never used for advertising.

You're in control

• See everything Dexico remembers about you in Settings, under "What Dexico remembers".
• Delete any single note there, or use "Delete all" to clear your memory. Deletion is permanent.
• Ask any tutor to forget something, for example "please forget my target grade". The tutor will delete it and confirm.
• When you delete your account, all of your memory is deleted with it.

Research

We will not use your memory or chats for research without asking you first.

Your account and study data are stored with Google Firebase (Google Cloud). Tutor memory and service logs are stored in a database hosted by Railway. We protect your data with encrypted connections (HTTPS), access controls and limited staff access.

No system is perfectly secure, so please use a strong, unique password and keep your login details private.

We share information only:

• with service providers that help us run Dexico, such as hosting, AI processing, analytics and payments, who may use it only to provide their services to us
• when required by law, or to respond to valid legal requests
• to protect the safety of our users, the public or the Service

We keep your information while your account is active.

You can delete your account in Settings, under "Delete account", or by emailing info@dexico.org. We will delete your account data, study content and tutor memory within 30 days of your request, except records we must keep by law, such as payment records. Copies in backups may remain for a limited time before they are overwritten.

You can:

• view and edit your account details
• view and delete your tutor memory in Settings
• ask for a copy of your data
• ask us to correct information that's wrong
• ask us to delete your account and data
• withdraw consent you've given us, where our use of your data depends on it

To make any of these requests, email info@dexico.org. We'll reply within 30 days.

Dexico is built for secondary school students, many of whom are under 18.

• If you are under 18, please use Dexico with the knowledge and permission of a parent or guardian.
• If you are under 13, you may only create an account with a parent's or guardian's consent.
• Parents and guardians can ask to see, correct or delete their child's data, including tutor memory, by emailing info@dexico.org.

If we learn that we've collected data from a child under 13 without a parent's or guardian's consent, we will delete it.

Dexico is used in several countries, and your data may be processed in countries other than the one you live in, including by our hosting and AI providers. We take steps to keep your data protected wherever it is processed.

We may update this policy as Dexico evolves. If we make important changes, we'll tell you in the app or by email before they take effect, and we'll update the date at the top.

Questions or privacy requests? Email info@dexico.org.