We believe serious studying requires peace of mind. StudyOS collects no analytics, forces no accounts, and stores every note and score directly on your device.
All tables (Subjects, Chapters, Flashcards, Mock Tests, Mistakes, Study Sessions) live in your phone's sandbox directory:
/data/data/com.studyos.app/databases/studyos.db. No remote server ever sees your data.
StudyOS contains no Google Firebase Analytics, no Meta Pixel, no Mixpanel, and no advertising IDs. We have no interest in tracking your study hours or monetizing your habits.
If you optionally configure OpenAI or Google Gemini keys for deep problem-solving explanations, the key is secured using Android Keystore and EncryptedSharedPreferences. Requests travel directly to the provider's API with no middleman.
Install StudyOS today. Fast, private, and always available offline.