Database Designer is an Android app developed by klim, available for free in the Utilities & Tools category. It is an easy, light, and fast application for database design that allows users to create tables, keys, columns, and change parameters and colors for them, among many other features. The app also allows users to create SQL by just tapping one button and use SQL in their database.

One of the best features of Database Designer is the ability to export the scheme in a picture and send it to someone. The app doesn't have any ads, and it is entirely free, with an option to support the project by paying. Overall, Database Designer is a convenient and user-friendly app that makes it easy to design and create databases on the go.