落書き帳 is an Android app developed by maruju that allows users to doodle and take notes on their smartphones. With its constant display feature, it provides a seamless doodling experience, just like scribbling on a physical notepad.

The app offers a range of features to enhance your doodling experience. You can use it to jot down important reminders, customize the screen according to your preferences, adjust the brightness and colors, and even brainstorm ideas for conversations with friends.

However, it's important to note that the app does not support the use of the back button to exit. As it is designed for constant display, you need to use the exit button provided to close the app completely.

While the app does not allow for completely opaque drawings, even when everything is filled in, the screen remains slightly visible, allowing for continued device operation. This ensures a worry-free user experience.

Please note that due to the inability to test the app on all devices, there may be some compatibility issues. If you encounter any problems, it is recommended to report them through reviews or email, as the developer may be able to address them. For important content, it is advisable to use an additional backup method.