Big font - Enlarge font size is a free Android app developed by HDP Android Team that helps users change the text size on their device. With this app, users can enlarge the font size to make reading text easier. The app offers multiple options to enlarge font size, including 120%, 140%, 180%, and 200%. Once the user sets up the app, their phone will automatically apply the bigger or smaller font size for all applications, making it easier to use apps like Contact, Messenger, and Email.

Overall, Big font - Enlarge font size is a useful app for users who struggle with reading small text on their device. It is easy to use and can improve the user's experience with various apps.