Ubuntu One

When you hear Ubuntu, you may think it is for Linux, but it offers service in all platforms- Windows, iOS and Android. It comes with 5 GB of free space and for an additional pure storage space, you will have to pay $29.99 per year or $2.99 per month for 20 GB. You can store files and it also offers the music streaming services to devices. The package will cost you an additional $1 per month, I.e.  $3.99 per month for 20 GB or $39.99 a year.