# Study OS > Smart timetable, grades, agenda, and attendance for students. Canonical page: [https://chrome-stats.com/d/com.ocean.android](https://chrome-stats.com/d/com.ocean.android) ## Overview - **ID:** `com.ocean.android` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** KTS Laboon Digital Creation - **Category:** EDUCATION - **Downloads:** 54,326 - **Version:** 1.2.0 - **Last updated:** 2026-08-06 - **First published:** 2014-11-09 - **Publisher country:** VN - **Size:** 32 MB - **Data as of:** 2026-09-18 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.ocean.android) - **Website:** [https://kientaoso.com/products/study-os](https://kientaoso.com/products/study-os) - **Privacy policy:** [https://www.freeprivacypolicy.com/live/fd18b0ac-87b2-4330-93ea-ba7547b2b9c1](https://www.freeprivacypolicy.com/live/fd18b0ac-87b2-4330-93ea-ba7547b2b9c1) ## Description 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 ## Rankings - #290,227 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_ADSERVICES_TOPICS` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.ACCESS_NOTIFICATION_POLICY` - `android.permission.ACCESS_WIFI_STATE` - `android.permission.CAMERA` - `android.permission.DOWNLOAD_WITHOUT_NOTIFICATION` - `android.permission.FOREGROUND_SERVICE` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.RECEIVE_BOOT_COMPLETED` - `android.permission.RECORD_AUDIO` - `android.permission.SCHEDULE_EXACT_ALARM` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `com.android.vending.CHECK_LICENSE` - `com.google.android.c2dm.permission.RECEIVE` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.gms.permission.AD_ID` - `com.ocean.android.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Review summary ### Pros - Very useful app - Good for students - Simple design ### Cons - Inflexible timing options for classes - Blue tint design is unappealing - Lack of widget feature ## Similar extensions and apps - [School Planner: Timetable App](https://chrome-stats.com/d/com.software41.my_school) — 120 users - [Student Planner](https://chrome-stats.com/d/com.bicolanodev.a30studentplanner) — 4 users - [Student OS](https://chrome-stats.com/d/com.studentos.app.edu) — 18 users - [TimeTable – Study Planner](https://chrome-stats.com/d/com.hamza.timetable) — 395 users - [Study Planner — Smart Agenda](https://chrome-stats.com/d/com.mystudypro.app) — 67 users - [Study Smart - School timetable](https://chrome-stats.com/d/com.gbruno.to_do) — 394 users - [Student Calendar - Timetable](https://chrome-stats.com/d/com.claudivan.agendadoestudanteplus) — 3,799,532 users, 4.64 / 5 - [School Planner](https://chrome-stats.com/d/daldev.android.gradehelper) — 17,909,588 users, 4.29 / 5 - [Student Planner & Timetable](https://chrome-stats.com/d/indie.anng.studytrack.student) — 69 users - [Easy School Timetable](https://chrome-stats.com/d/com.nbmedia.myschool) — 3,052 users - [Studeo](https://chrome-stats.com/d/dev.yonniphantom.studeo) — 82 users - [School Timetable Pro](https://chrome-stats.com/d/com.dercide.horarioescolar) — 10,571 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.ocean.android)