Study OS is a handy student planner designed to help you organize your academic life and keep everything under control. Whether you are in high school or university, this is the app for you.
Writing down everything in your student workflow is simple and fast. Daily notifications help you never forget anything. The built-in calendar is highly optimized for student needs and lets you manage events and activities with ease.
Keep your timetable and daily schedule always at hand, track grades automatically, record lectures, and save teacher contacts -- all in one place.
DASHBOARD -- Perfect scheduling
- Quick overview of today's classes, upcoming events, and GPA
- Create reminders, exams, homework, subjects, and teachers
AGENDA -- Assignments and exams
- Never miss an activity: add reminders with notifications
- Edit, remove, and share your plans
- Track homework and exam dates by term
CALENDAR -- Monthly view
- See all events by date at a glance
- Create and manage plans directly from the calendar
- Share your schedule
TIMETABLE -- Weekly schedule
- Day mode and period mode supported
- Configurable hours, Saturday/Sunday toggle, classroom visibility
- Home screen widget shows today's classes
- Multiple timetables per planner
GRADES -- Track your progress
- Automatic GPA calculation with weighted grades
- Supports multiple grading systems (10-point, 4.0, percentage)
- Filter by term, subject, or type (exam, quiz, oral, assignment)
SUBJECTS -- Manage your courses
- Color-coded subjects with grade targets
- Link teachers and timetables
- Sort and filter by term
ATTENDANCE -- Stay on track
- Log absences, late arrivals, and presences
- Set absence and delay limits with warnings
- Track per-subject attendance
TEACHERS -- Contact directory
- Save teacher info: name, email, phone, office hours, website
- Quick-call and quick-email shortcuts
RECORDINGS -- Capture lectures
- Record audio directly in the app
- Playback with seek control
- Share recordings with classmates
KEY FEATURES
- Works fully offline -- your data stays on your device
- Home screen widgets for timetable and agenda
- Available in English, Vietnamese, and Chinese
- Dark mode support
- Term management with automatic switching
- Privacy-first: no account required, no cloud sync, no data collection
PRIVACY
Your data is stored locally using a fast on-device database. We do not collect, transmit, or sell any personal information.
Contact: hello@kientaoso.com
Website: https://kientaoso.com
Download Study OS for free and take control of your student life today!
## Contact
- Email: hello@kientaoso.com
- Website: https://kientaoso.com
- Privacy: https://kientaoso.com/privacy
Latest Version
1.2.0Uploaded by
Quentin Peneau
Requires Android
Android 7.0+
Category
Free Education AppContent Rating
Everyone
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Flag as inappropriateLast updated on Sep 30, 2026
New features and improvements!
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- Improved analytics to help us build better features for you
- Cleaner database schema with removal of unused OAuth fields
- Enhanced crash reporting with better error deobfuscation
- Stability fixes and performance improvements
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