CIOM is a free lifestyle app developed by CIOM Admin for Android users. The app requires users to register and validate their account via email before taking an entrance exam. Once approved, users can access all the missions available in their area.

The app's main feature is its mission system, which allows users to complete various tasks and earn rewards. The missions are tailored to the user's location, making it easier to find and complete them. The app also features a leaderboard, where users can compete with each other based on the number of missions completed.

Overall, CIOM is an exciting app that offers a unique way of earning rewards while completing various missions. The app's user interface is easy to navigate, and the missions are challenging but doable. If you're looking for a fun way to earn rewards and explore your city, CIOM is definitely worth checking out.