Privacy Policy

Effective Date: July 7, 2026

Welcome to Glosa. We value your privacy and are committed to protecting your personal data. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application and backend services.

1. Data We Collect

We believe in data minimization. We only collect the data necessary to provide and secure our services:

• Anonymous Device Identifiers: We generate and securely store an anonymous, randomized UUID on your device. This identifier is used solely to enforce our free-tier daily translation lookup limits.
• Anonymous Telemetry & Analytics: We collect basic, anonymous event logs (such as app session starts, website domains loaded, and screen navigation triggers) to diagnose app errors and optimize lookup stability. This data is logged pseudonymously under your anonymous device identifier (UUID), and is never linked to your personal email address or real identity. Website tracking is strictly limited to domain names (e.g. elpais.com)—we never record the specific article paths, search terms, or complete URLs you browse.
• Authentication Data: If you sign in using Google or Apple, we receive your email address and a unique provider-specific identifier to sync your Premium subscription status across multiple devices.
• Translation Text Clips: When you select a word to translate inside our Reader, the specific word and surrounding sentence context are sent securely (via HTTPS) to our proxy worker and processed temporarily by DeepL and OpenAI. We do not store, catalog, or sell your reading history or translated texts.
• Subscription and Billing Events: Subscriptions are processed securely by the Apple App Store, Google Play Store, and synchronized via RevenueCat. We do not collect or store your payment details.

2. Third-Party Services

To perform translation and subscription synchronization, we transmit data to the following partners, who handle your data in accordance with their own strict privacy policies:

• DeepL GmbH (for translation services)
• OpenAI LLC (for grammatical enrichment and dictionary lookups)
• RevenueCat, Inc. (for subscription management)

3. In-App Account Deletion and Your Rights

You have full control over your data. If you have created an account in Glosa (via Apple or Google Sign-In), you can permanently delete your account directly inside the app at any time:

1. Open the Glosa app and navigate to Settings.
2. Under Account & Limits, tap Delete Account.
3. Confirm the prompt. Your account will be immediately deleted, all database lookups and telemetry records will be permanently anonymized, and your device session will be wiped.

You can also contact us at support@glosa.page for data export or additional data inquiries.

4. Web Browsing, Cookies, and Third-Party Tracking

Glosa is an educational language-learning tool that features an in-app browser allowing users to read foreign language articles and tap words to view vocabulary insights. Web pages are loaded in an isolated browser container (WebKit / WKWebView on iOS). Glosa does not access, collect, extract, store, or transmit third-party website cookies, credentials, or browsing session data. Furthermore, Glosa contains no advertising SDKs, does not share or sell user data to third-party data brokers, and does not engage in cross-site or cross-app tracking.

5. Security

All communications between the Glosa mobile application and our servers are encrypted in transit using secure SSL/TLS protocols (HTTPS).