Recently, my wife is ready to travel, she wrote a travel checklist on her cell phone, but when she wants to print this checklist on a piece of A4 paper, she found that there is no App can do this.
So I helped her on the AppStore find whether there is print a list of App, but frustrating, looked in the AppStore is no such a App.
In order not to disappoint my wife, as a professional engineer, I had to do it yourself, so there was this App.
Flash is a small but powerful App, only focus on one thing, make you easy to print out your checklist.
PS: Dont ask me why this App is called Flash, but I can tell you that I very recently like to watch "The Flash".