A free app for Android, by My files.

Notepad is a simple text editor for android. It can create and edit plain text documents. The app has a simple user interface and can be used by both beginners and advanced users. It has a rich selection of text editing tools that can be used to change the appearance of the text, make it bold, italic, and underline, as well as add links, images, and other things. 

It can also be used to create and edit databases.. The app has an option to create a new document from scratch and another option to edit an existing document. It can also be used to make a backup copy of your document in case it gets corrupted or lost.