storymakers
com.mjrstudio.kth_slideGoogle Play's public listing exposes whether purchases are available and may expose a localized price range, but not the complete third-party product catalog.
Individual product names and exact SKU prices require the app owner's authenticated Google Play Developer API access.
You can solve past questions every time you unlock your smartphone, or you can ignore the problem and use the screen right away. The Korean History Proficiency Test that I study in my spare time.
Quick answers based on the latest observed App Store data.
The latest observed Google Play download price is Free. Prices can differ by country and should be confirmed on Google Play.
The current public Google Play listing does not show in-app purchases for this storefront.