Powerful Clock, developed by hoticesun, is a free Android time management app that offers basic functions like alarm, world clock, timer and stopwatch. It also has a special “Night mode” that perfectly matches both smartphone and tablet layouts. This app is simple, modern, and easy to use.

One of the best features of Powerful Clock is that it supports both phone and tablet layouts. The app's interface is user-friendly, and it's easy to navigate through the different functions. The app also has a customizable night mode, which is perfect for those who prefer a darker interface at night.

Another feature that sets Powerful Clock apart from other time management apps is that each record of stopwatch can be exported to the user's email. This is extremely useful for anyone who needs to keep track of their time for work or personal reasons.

Overall, Powerful Clock is a great app for anyone who needs a simple and modern time management tool. It's perfect for those who want basic functions like an alarm, world clock, timer, and stopwatch without any unnecessary frills.