Quick Memo -PaperPlane- is a free memo app developed by fmouri for Android devices. As its name suggests, it allows users to quickly launch the app and start writing immediately, with just a swipe of the home button.

One of the app's main features is its ability to allow users to write a memo while watching other applications, such as reading an email, browsing the web, or using social media. This feature makes it easy for users to take notes without having to switch back and forth between applications.

Another great feature is the app's ability to cooperate with other applications, such as telephone, map search, web search, and even animation search. This makes it easy for users to quickly access relevant information or add notes to existing data.

Overall, Quick Memo -PaperPlane- is a fast and convenient memo app that offers great features for users who need to take notes on-the-go.