Privacy Policy – NexLens Calc

We at NexLens Soluções Ópticas Ltda, a Brazilian limited liability company, headquartered in Brazil ("NexLens") are committed to safeguarding your privacy and protecting your personal data. This Privacy Policy explains how we collect, use, disclose, and protect your information when you use the NexLens Calc application. This Policy is designed in accordance with internationally recognized privacy standards, including the General Data Protection Regulation (GDPR), the Brazilian General Data Protection Law (LGPD), and other applicable data protection regulations.

By using NexLens Calc, you acknowledge that you have read and understood this Privacy Policy.

1. Data We Collect

When you use NexLens Calc, we may collect the following categories of personal data:

a) Identity and contact information

  • Email address

b) Health-related data

(Processed only with your explicit consent, as required by applicable laws)

  • Ophthalmic prescriptions
  • Lens usage history
  • Visual and ocular conditions relevant to optical calculations

c) Usage and technical data

  • App usage metrics (features accessed, duration of use, interactions)
  • Device information (model, operating system, identifiers)
  • Error logs, crash reports, and diagnostic data (which may be automatically collected by Google or Apple depending on your device settings)

d) Data processed by app stores

Google Play Store and Apple App Store may collect certain data independently for account management, installation, payments, or analytics. Such data is processed under their respective policies and is not controlled by NexLens.

Platform policies can be found at:

2. Purposes of Processing

We use the collected data for the following purposes:

  • a) To provide personalized ophthalmic lens calculations tailored to your prescription and needs.
  • b) To deliver, maintain, and improve the functionality and performance of NexLens Calc.
  • c) To conduct statistical analysis, research, and product development to enhance our services.
  • d) To communicate updates, new features, and important service-related notices (only where permitted by law).
  • e) To comply with legal, regulatory, or contractual obligations.

We process health data strictly under legal bases that allow such processing (for example, explicit consent or another legitimate purpose authorized by applicable regulation).

3. Data Sharing and Disclosure

We may share your personal data only when necessary and under appropriate safeguards:

a) Service providers

Third-party companies supporting the operation of NexLens Calc, such as analytics providers, cloud storage services, and performance monitoring tools.

b) Google and Apple

When interacting with the app through their stores, some data may be shared with Google or Apple as part of: purchasing and subscription management, fraud prevention, and app distribution. These platforms process data under their own privacy policies.

c) Legal and regulatory authorities

We may disclose your data if necessary to comply with applicable laws, court orders, or government requests.

We do not sell or rent your personal data.

4. Payments and Subscriptions

All payments, subscriptions, and financial transactions are handled exclusively by:

  • Google Play Billing (Android)
  • Apple In-App Purchases (iOS)

NexLens does not collect or store your credit card data, banking information, or detailed billing information. These are managed entirely by Google and Apple under their secure payment systems.

5. Data Retention

We retain your personal data only for as long as necessary for the purposes described in this Policy, unless a longer retention period is legally required or permitted. After this period, the data is securely deleted, anonymized, or archived.

6. Data Security

We adopt administrative, technical, and physical measures to protect your personal data from unauthorized access, loss, misuse, alteration, or destruction. However, no digital system is completely secure, and we cannot guarantee absolute protection.

7. Cookies and Tracking Technologies

NexLens Calc may use cookies and similar technologies to enhance user experience, improve performance, and support analytics.

Depending on your device settings, Google and Apple may also use tracking technologies for app installation, updates, and crash diagnostics.

You can manage tracking preferences in your device or operating system privacy settings. Disabling some technologies may impact certain functionalities.

8. Your Rights

Depending on your jurisdiction, you may have the following rights regarding your personal data:

  • Right of access to your personal data
  • Right to rectification of inaccurate or incomplete data
  • Right to erasure or anonymization, in specific cases
  • Right to restriction or objection to processing, when applicable
  • Right to data portability
  • Right to withdraw consent at any time, when processing is based on consent
  • Right to obtain information about data sharing

To exercise your rights, please contact us using the channels listed in the “Contact Us” section. We may request additional information to verify your identity for security purposes.

9. International Transfers

If your data is transferred to servers located outside your country, we ensure that appropriate safeguards are in place, such as standard contractual clauses or equivalent protections, in compliance with applicable laws.

10. Changes to This Privacy Policy

This Privacy Policy may be updated periodically to reflect changes in our practices, legal requirements, or service improvements. The “Last Updated” date will be revised accordingly. We encourage you to review this Policy regularly.

11. Contact Us

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

Email: support@nexlens.app

Phone: +55 11 9952-30195

Last Updated: December 1, 2025