This app does not require any special permission. Please give me feedback, so we can make this app better. This app has kept running for 5 years since early 2013, and it will continue to run. During 5 years, a lot of issues happened, and the most critical one was Yahoo stopped providing it's data api and charts, which made this app un-usable in the second half of year 2017. After waiting for few months, miracle did not happen. So on late Year 2017, I rent a web host, implemented backend da