Privacy Policy

Last updated: September 8, 2026

legal.privacy.intro

1. Who we are

Data controller: ФОП Балєлов Микола Юрійович, tax ID 3394706615, Україна, 25015, Кіровоградська обл., м. Кропивницький, Подільський р-н, вул. Полтавська, буд. 37, кв. 438. Privacy contact: mbalielov@gmail.com.

2. Data we collect

Account data: name, email, password hash (email sign-up), role, AI settings, optional onboarding (city, school, subjects).

Classroom data: class names, tests, questions, results, student names (as entered), access codes, games, presentations.

AI assistant messages: text a person voluntarily submits in chat and the assistant response. Contact details are automatically redacted, and the cleaned dialog is stored for up to 30 days for quality control and knowledge-base improvement. The message is sent to the AI provider to generate a response.

Technical data: IP address, browser type, error logs (Sentry), cookies/localStorage for session and locale. With separate consent, Google Analytics also receives page-view, Service-interaction, and advertising-referral performance data.

Card payment data is not stored on our servers; Monobank processes it on the checkout page.

3. Purposes

Provide the Service, authentication, AI generation, teacher analytics, support, security, and abuse prevention.

Perform the agreement (Terms of Service) and process paid-subscription payments.

Improve the product using aggregated statistics where possible without identifying individual students.

4. Student data

Students may take tests without an account by entering a name and access code. Teachers define the purpose of collecting student data in their classes.

We process student data only to provide Service features (tests, results, resume) and not for advertising.

5. Third parties

We may share data with infrastructure providers as needed: Google Cloud (hosting, Vertex AI), Google Analytics and Google Ads (analytics and advertising measurement with consent only), Sentry (errors), Supabase (realtime when enabled), Monobank (payments).

Sharing is limited to stated purposes under vendor terms or data processing agreements.

6. Retention

Account data is kept for the term of the agreement and a reasonable period after deletion for disputes if required.

Test results and journals are kept until deleted by the teacher or while the account is active unless law requires otherwise.

7. Your rights

You may request access, correction, deletion, restriction, or withdrawal of consent where applicable by emailing mbalielov@gmail.com.

We respond within timeframes required by Ukrainian personal data law.

8. Cookies and localStorage

We use localStorage for session JWT, locale, and technical flags (e.g. test resume).

Google Analytics and advertising-referral measurement load only after you consent. Ad personalization remains disabled. You can refuse or change your choice through “Cookie settings” in the footer; refusing does not limit Service features.

9. Security and updates

We apply organizational and technical safeguards (HTTPS, access control, backups).

This Policy may be updated; the current version is always on this page. Material changes may be announced in the Service or by email.

Service provider details

Provider: ФОП Балєлов Микола Юрійович

Tax ID: 3394706615

Address: Україна, 25015, Кіровоградська обл., м. Кропивницький, Подільський р-н, вул. Полтавська, буд. 37, кв. 438

Support email: mbalielov@gmail.com

Website: https://nexis.study