Lockscreen Korean History Downloads & RevenueLockscreen Korean History · Google Play
Lockscreen Korean History gets 100+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Lockscreen Korean History is #51 in Education Free on Google Play in South Korea and charting in 1 of 23 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperWafour Edu
CategoryEducation
PriceFree
Released–
Installs100k+
Rating–
Updated
Content ratingEveryone
Lockscreen Korean History update history & changes
Last change · 3 events since 9 Sep 2026Full timeline ↓Full timeline · 3 events
- 📦Lockscreen Korean History updated to version 1.2.6- Stability Improvement
- 🆕Lockscreen Korean History first spotted by AppInsiderSouth Korea
- 📦Lockscreen Korean History version 1.2.5- Stability Improvement
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Best rank now
#51
Education FreeMeasured
Lockscreen Korean History on Google Play
App details
App ID
com.wafour.wakorhistory
Publisher
Wafour Corporation
Publisher country
South Korea
Content rating
Everyone
Lockscreen Korean History downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Where Lockscreen Korean History's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How Lockscreen Korean History makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 218 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| South Korea | EducationFree | #51 |
Apps near Lockscreen Korean History on the chart
Education Free, around #51.
About Lockscreen Korean History
Studying Korean history is no longer difficult!
Automatic Korean History Memorization provides Korean history learning content for middle school, high school, and the Korean History Proficiency Test, allowing you to study systematically by period from prehistoric times to modern and contemporary history.
You can naturally study Korean history every day on your lock screen and check what you have learned through quizzes.
Now you do not need to set aside extra time to memorize Korean history. Understand and review it naturally every day.
✔ Lock Screen Learning
Every time you turn on your phone, Korean history content appears on the lock screen, making it easy to study and review repeatedly.
✔ Middle School·High School·Korean History Proficiency Test Courses
Learning content is divided into middle school, high school, and Korean History Proficiency Test courses, so you can study Korean history according to your goal.
✔ Unit-Based Learning Course
Unit-based summaries based on the Korean history curriculum help you organize your learning scope systematically.
Key summaries are also provided for each topic, so you can quickly review important content.
✔ Korea·China·Japan Integrated Timeline
Major historical events from Korea, China, and Japan are organized by year in a timeline.
Tap each event to view detailed explanations and understand the historical flow of the same period.
✔ Korean History Quizzes
Various multiple-choice quizzes are provided for each unit, allowing you to check what you have learned.
Various quiz statistics are also provided.
✔ Quiz Alerts
Set Korean history quizzes to appear at your preferred time, helping you study consistently.
✔ Wrong Answer Note
Review only the questions you answered incorrectly.
Study your weak areas again and make them fully your own knowledge.
✔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: [email protected]
Phone Number: 070-4336-1593
Automatic Korean History Memorization provides Korean history learning content for middle school, high school, and the Korean History Proficiency Test, allowing you to study systematically by period from prehistoric times to modern and contemporary history.
You can naturally study Korean history every day on your lock screen and check what you have learned through quizzes.
Now you do not need to set aside extra time to memorize Korean history. Understand and review it naturally every day.
✔ Lock Screen Learning
Every time you turn on your phone, Korean history content appears on the lock screen, making it easy to study and review repeatedly.
✔ Middle School·High School·Korean History Proficiency Test Courses
Learning content is divided into middle school, high school, and Korean History Proficiency Test courses, so you can study Korean history according to your goal.
✔ Unit-Based Learning Course
Unit-based summaries based on the Korean history curriculum help you organize your learning scope systematically.
Key summaries are also provided for each topic, so you can quickly review important content.
✔ Korea·China·Japan Integrated Timeline
Major historical events from Korea, China, and Japan are organized by year in a timeline.
Tap each event to view detailed explanations and understand the historical flow of the same period.
✔ Korean History Quizzes
Various multiple-choice quizzes are provided for each unit, allowing you to check what you have learned.
Various quiz statistics are also provided.
✔ Quiz Alerts
Set Korean history quizzes to appear at your preferred time, helping you study consistently.
✔ Wrong Answer Note
Review only the questions you answered incorrectly.
Study your weak areas again and make them fully your own knowledge.
✔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: [email protected]
Phone Number: 070-4336-1593
What's new in 1.2.6
- Stability Improvement