As of 2015, some different data backup services are iDrive, CrashPlan, SOS Online Backup and Carbonite. iDrive offers a free version with 5 GB of online storage, and for $59.50 a year, the Personal Pro version offers one TB of storage for an unlimited number of devices. It allows users to set up their own private encryption keys for accessing their backup files securely. This service performs daily backup by default but users can set up their own backup schedules.
As of 2015, CrashPlan allows users to backup their files to either a local computer or any computer with Internet access for free. For $59.99 per year, it provides unlimited online storage for one device. CrashPlan encrypts all data with a 448-bit Blowfish algorithm before its program uploads the data to the online storage. For added security, users can set up a private password for accessing the backup files.
SOS Online Backup doesn't offer a free backup plan. For $7.99 a month, users have unlimited online storage space for one computer and unlimited number of mobile devices. It provides three security options and allows users to set up to two passwords for their backed up data. For $59.99 a year, the Carbonite basic plan offers unlimited online storage for one computer. Alternatively, users can choose more expensive backup plans with additional features such as video backup and courier recovery service.