A free program for Android, by Digital Ware Zone.

The All in One Tools app is a FREE smart toolbox with all the tools you need to make life easier. We’ve designed this app to be the all-in-one solution for anyone who needs a convenient and easy-to-use toolbox. You can access all of our tools through a simple and intuitive interface, so you can get the information you need quickly and easily.

We’ve included a number of tools to help you with everyday tasks, including:

A magnifying glass to help you see things more clearly. 

A step counter to help you keep track of your progress. 

A bubble level to help you get rid of the unwanted surface waves. 

A QR code scanner to get information about the item. 

A PDF converter to convert from one format to another. 

A pdf compressor to reduce PDF file size. 

A unit converter to convert from one units to another. 

A tip calculator to help you estimate your tip. 

A discount calculator to help you calculate discounts. 

A screen light to help you when you are using your device in the dark. 

A toolbox to store your items. 

And we have added a sticky note to write down your thoughts and ideas.