गोपनीयता नीति

LangYOU is designed with a privacy-first approach. Most of your data stays on your device. **Data stored on your device only:** - Your vocabulary (saved words and translations) - Imported books and reading progress - Learning statistics and exercise results - App preferences and settings - Spaced repetition schedules **Data we process on our servers:** - AI exercise evaluation requests (word, translation, sentence text — sent to our API at lang.hashlab.digital) - An anonymous device identifier for AI requests - Vocabulary sync data (if you use cloud sync features) - App interface translations for your selected language **Data processed by third-party services:** - Word translations via LibreTranslate and MyMemory APIs - Dictionary definitions via Free Dictionary API - Example sentences via Tatoeba API - Crash reports via Firebase Crashlytics (if enabled) - Subscription status via Apple StoreKit

LangYOU uses a hybrid AI approach: **On-device AI:** An AI language model (downloaded once, ~1.3GB) runs entirely on your iPhone to generate contextual example sentences. No data leaves your device for this feature. **Cloud AI:** For exercise evaluation, hints, and the AI tutor chat, text data (words, translations, sentences) is sent to our server at lang.hashlab.digital. An anonymous device identifier is included with these requests. No personal information such as name or email is sent.

प्रीमियम सब्सक्रिप्शन पूरी तरह से Apple App Store के माध्यम से प्रबंधित होते हैं। हम भुगतान जानकारी नहीं ईकट्ठा करते या संग्रहीत करते। Apple अपनी गोपनीयता नीति के अनुसार सभी बिलिंग, रसीद और सब्सक्रिप्शन प्रबंधन करती है।

LangYOU uses the following third-party services: - **Apple StoreKit** — for subscription management - **Firebase Crashlytics** — for anonymous crash reporting (can be disabled) - **Tatoeba** — for example sentences (open-source sentence database) - **LibreTranslate** — for word translations (open-source translation API) - **MyMemory** — as a fallback translation service - **Free Dictionary API** — for word definitions and phonetics These services receive only the minimum data needed to function (e.g., the word being translated). No personal identifiers are sent to third-party services.

We do not sell or share your personal data with third parties for advertising or marketing purposes. Data is only sent to the services listed above for core app functionality (translation, example sentences, AI exercises). Your vocabulary and reading data are never shared with advertisers or data brokers.

All learning data is stored locally on your device. Vocabulary sync data may be stored on our servers at lang.hashlab.digital if you use sync features. You can delete all app data at any time by removing the app or using the in-app reset function.

LangYOU जानबूझकर 13 वर्ष से कम उम्र के बच्चों से व्यक्तिगत जानकारी एकत्र नहीं करता। ऐप सभी उम्र के लिए उपयुक्त है लेकिन विशेष रूप से बच्चों को लक्षित नहीं करता।

You have the right to: - Access all your data (it is on your device) - Delete all your data (via app deletion or in-app reset) - Opt out of crash reporting - Request information about data processing - Contact us at [email protected] for any privacy concerns

हम समय-समय पर इस गोपनीयता नीति को अपडेट कर सकते हैं। परिवर्तन इस पृष्ठ पर अपडेटेड तिथि के साथ प्रकाशित किए जाएंगे।

यदि आपको इस गोपनीयता नीति के बारे में कोई प्रश्न है, तो [email protected] पर संपर्क करें।