Challenge Calendar is an Android app developed by ozamobile, designed to help you keep track of your progress and maintain motivation. This free app falls under the Business & Productivity category and is compatible with Android 9.0. With Challenge Calendar, you can easily create daily goals, objectives, or habits that you want to build and check them off your list as you complete them.

One of the key features of this app is the ability to choose an image to associate with your goal, which can help you visualize your progress. Additionally, Challenge Calendar requests permission to access your external storage to enable backup functionality.

Overall, Challenge Calendar is a simple yet effective app that can help you stay on track with your goals and build new habits. It is perfect for anyone looking for a straightforward way to track their progress and stay motivated.