Effective date: February 13, 2026

Last updated: March 8, 2026

Mathera (“Mathera”, “we”, “us”, “our”) is an iOS application developed by Rafael Barbosa Guimarães (individual developer) located in Brazil.

This Privacy Policy explains how Mathera collects, uses, shares, stores, and protects information when you use the app. It is designed to comply with applicable privacy laws, including Brazil’s LGPD, the GDPR (EEA/UK), and the CCPA/CPRA (California), and to align with Apple App Store privacy requirements.

Important note about AI prompts: Mathera’s core feature uses third-party AI services to process the text prompt you type in order to generate meditation content. By default, Mathera includes your provided name with your prompt so the generated meditation can greet you by name. You can turn this off in the app’s account settings. Do not enter personal data (PII) or sensitive information (including health data) into prompts. Your prompt text (and, by default, your name for greeting purposes unless you opt out) is processed by a third-party AI provider (Google) to generate results.

By using Mathera, you agree to this Privacy Policy.


1) Who We Are (Controller/Business)

For purposes of data protection law:

Contact: [email protected]


2) Information We Collect

We collect information in two ways: (A) information you provide, and (B) information collected automatically when you use the app.

A. Information you provide

B. Information collected automatically