"Okk" is a free Android app developed by Okk that allows users to earn money by answering general knowledge questions. After registering as a member, users can access the app's services and earn money by answering questions.

In addition to the earning feature, "Okk" provides various types of general knowledge questions to test users' skills. The app is compatible with Android 13.0 and is categorized under Business & Productivity. While the app's main focus is on earning money, it also serves as a platform for users to enhance their general knowledge.

Overall, "Okk" is a decent app for those looking to earn some extra cash while also improving their general knowledge. However, it is important to note that the earning potential may not be significant, and the app's services are only available to registered members.