Mol Class is committed to protecting your privacy and personal data. This Policy explains how we collect, use, and protect your information when using our website and educational chemistry services.

This policy complies with LGPD, GDPR, CCPA, and other applicable regulations, with transparency and respect for your rights.

Data Controller: Mol Class

Controller Contact: molclassapp@gmail.com

Technical Data

Types of technical data collected:

• IP address and device information
• Browser type and operating system
• Pages visited and time spent
• Referral source from external sites
• Device identifiers and session information

Legal basis: Legitimate interest for service operation and security

Purpose: Ensure proper operation and security of our educational platform

Educational Data

Types of educational data collected:

• Interactions with chemistry calculators and tools
• Language and theme preferences
• Calculation history (stored locally in the browser)
• Usage patterns of features and performance metrics

Legal basis: Consent and legitimate interest for service improvement

Purpose: Personalize the learning experience and enhance educational tools

Cookies and Similar Technologies

Essential Cookies:

• Language and theme preferences
• Cookie consent preferences
• Session management and security
• Basic site functionality and navigation

Legal basis: Necessary for service operation (no consent required)

Analytics Cookies (Optional):

• Google Analytics: traffic and behavior analysis
• Microsoft Clarity: experience analysis and session recordings
• Performance and error monitoring

Legal basis: Consent (may be revoked at any time)

Purpose: Improve user experience and platform performance

Consent: You can manage cookie preferences in our consent banner

Gerenciamento: You can manage your cookie preferences through our banner or browser settings. Disabling analytics cookies does not affect the main functionality of educational tools.

Registration Data

Types of registration data collected:

• Email address (when provided)
• Username (if created)
• Account preferences and settings
• Communication preferences

Legal basis: Consent and contract execution

Purpose: Provide personalized services and account management

Minors' Data

General Policy

• We do not intentionally collect data from children under 13 years old
• If identified, such data will be promptly deleted
• Parents/guardians should supervise minors' online activities

We retain your personal data only as long as necessary to fulfill the purposes outlined in this policy:

• Technical data: up to 2 years for security and analytics
• Educational data: until account deletion or request
• Cookie data: according to our cookie policy (up to 26 months for analytics)
• Communication data: up to 3 years for user support

Note: Some data may be retained longer if required by law or for legitimate purposes, such as security incident investigations.

Under applicable privacy laws (LGPD, GDPR, CCPA, etc.), you have the following rights:

• Access: Know which personal data we maintain about you
• Rectification: Correct inaccurate data
• Deletion: Request deletion of your personal data
• Portability: Receive your data in a structured format
• Objection: Object to certain types of processing
• Restriction: Limit how we process your data
• Withdrawal of Consent: Withdraw consent at any time
• Non-Discrimination: Not be discriminated against for exercising privacy rights

How to exercise your rights:

Contact us at molclassapp@gmail.com with your request

Email: molclassapp@gmail.com

Subject: “Privacy and Data Protection”

We will respond within the timeframe required by applicable law (generally 30 days for GDPR, 45 days for CCPA).

Cookie Management

Our consent banner allows you to:

• Accept or refuse cookies
• Access details of the privacy policy and terms of use

We use the following trusted third-party services:

Legal basis: Legitimate interest for service improvement and consent for analytics

You can control data sharing with third parties through our cookie consent banner

Each third-party service has its own privacy policy governing its data processing practices

To manage third-party preferences, use the cookie banner

We may update this Policy to reflect legal, technological, or service changes.

• The date of the last update will always be indicated at the top
• Important changes will be communicated on the site or by email (when applicable)
• Continued use after changes implies acceptance of the updates
• We recommend reviewing this policy periodically

Email: molclassapp@gmail.com

Subject: “Privacy and Data Protection”