Studying Korean history is no longer difficult!
Lockscreen Korean History includes all the content from the Korean history curriculum, organized by historical periods for systematic learning.
You can naturally study Korean history daily on the lock screen and review the learned content through quizzes.
Now, there's no need to set aside time to understand and memorize Korean history.

✔Lockscreen Learning
Every time you turn on your phone, Korean history content is displayed on the lock screen, making it easy to study and allowing for repeated learning.

✔Course Divided by Units
Provides unit-based summaries according to the Korean history curriculum, helping you systematically organize your study scope.

✔Korean History Quizzes Provided
Offers various multiple-choice quizzes for each unit, allowing you to review what you’ve learned through quizzes.
Also provides diverse statistics on the quizzes.

✔Quiz Alerts
Display Korean history quizzes at your alarm time to notify time you study.

✔Incorrect Answer Notes
Provides a feature to re-study the questions you got wrong. Review weak areas to fully make the knowledge your own.

✔Purpose of App Permissions Requested Before Installation
- READ_PHONE_STATE: Permission to stop the app from running to avoid interrupting phone calls.(optional)
- ACCESS_FINE_LOCATION: Permission to request your current location to use the weather service.(optional)
- SYSTEM_ALERT_WINDOW: Permission to display Korean history on the lock screen.(required)
- POST_NOTIFICATION: Permission to receive alarms related to app services.(optional)

Note: The sole purpose of this app is to help you learn Korean history on the lock screen.
Lockscreen Korean History also provides location-based weather information for your convenience.

✔Customer Service
E-Mail: support@wafour.com
Phone Number: 070-4336-1593