title: Suggest a common database for all the platforms like windows, Mac, IOS, Android etc
body: <p>Please suggest a common database for all the platforms like windows, Mac, IOS, Android etc...
  My aim is to build an application to talk all these mediums in offline and online. To store the data in offline mode, i need to know, how to maintain a storage 
  (i.e., common storage so that no need to write a code for each and every medium) in all these mediums. </p>
  
  <p>Please help. </p>