Canonical, the developers of Ubuntu announced to shut down Ubuntu One file services on June 1, 2014, in order to focus on improving Ubuntu become converged operating system for phones, tablets, desktops and more.
Ubuntu One was offering 5 GB online storage free for all users and offering more storage with premium plans. The fact that now many cloud storage services regularly offering 25GB-50GB free storage, played an important role in the decision to shut down Ubuntu One.
Start from 2 Apr 2014, Users will no longer be able to purchase storage or music from the Ubuntu One Store. Ubuntu One file services will not be included in upcoming Ubuntu 14.04 LTS release and the Ubuntu One apps in older versions of Ubuntu and in the Ubuntu, Google, and Apple stores will be updated accordingly. User content will remain available for download until 31 July, Ubuntu One file services will be unavailable from 1 June 2014 and data will be deleted.
Customers who have active annual subscription will will receive a partial reimbursement from 2 Apr 2014 even though Ubuntu One file services will remain available until 1 June.
Shutdown of Ubuntu One file services will not affect Ubuntu Single Sign On service, Ubuntu One payment service, or the backend U1DB database service.
For Full Details, please refer to
Shutting down Ubuntu One file services