Study current affairs, economics, vocabulary, and general knowledge
quickly and easily from your lock screen.
Short but powerful content,
designed in a simple flow:
Read → Solve → Review.
Build your knowledge naturally,
one unlock at a time.

✔Automatic Lock Screen Learning
• Knowledge content appears every time you unlock your phone
• Learn naturally without opening the app separately
• Supports Light & Dark mode for comfortable viewing
✔Study Mode
• Choose categories such as Current Affairs, Economics, Vocabulary, and General Knowledge
• One-minute lessons focused on key concepts
• Efficient learning, even in short moments
✔Quiz Alarm
• Set quiz notifications at your preferred time
• Build a learning routine through daily question solving
• Stay consistent with one question a day
✔Practice Mode
• Solve questions in a relaxed practice environment
• Instantly review what you’ve learned
• Light and easy skill check
✔Test Mode
• Take multiple questions at once in a real test format
• View your score, accuracy rate, and time spent
• Track your learning level objectively
✔Wrong Answer Note
• Automatically saves incorrect answers
• Review weak areas effectively
• Optimized for quick revision before tests
✔Custom Notifications
• Set learning reminders at your preferred time
• Helps build consistent study habits
✔Bookmark & Save
• Save important knowledge for later review
• Reinforce key concepts anytime

One minute a day
can build a year’s worth of knowledge.
The moment you unlock your phone,
learning begins.

✔App Permissions
• SYSTEM_ALERT_WINDOW: Required to display content on the lock screen
• POST_NOTIFICATION: Optional, for quiz and study notifications
• READ_PHONE_STATE: Optional, to prevent interruptions during calls
• This app is designed solely to provide lock screen–based learning content.

Customer Support
E-Mail: support@wafour.com
+82 70 4336 1593