If if you want to about something Google it.ther the Google actually is.google is search engine which is the best ever app in mobile phones.they do have details about each simple and complicated issues and things.in this u have a good dictionary reference also where a uneducated can also know about things
But the problem is that this app eats slot of ram.if u continuously use this app for 15 minutes or more your phone lags.sone it backups suddenly.