The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From SOS Online Backup:
Managed Offsite Backup is the ultimate personal protection solution designed to back up your iPhone and protect all your contacts and photos in the Managed Offsite cloud. It also lets you stream all of your music straight from your cloud to your device, giving you access to all of your music and photos from anywhere! Share your photos, stream video, access all your documents and more! Download and start iOS backup with your existing Managed Offsite Backup account. Access and Share your files anywhere using the Managed Offsite Backup app.