For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
OwnDrive - OwnDrive is a web-based storage platform allowing the professionals, enterprises, and individuals to easily upload, store, backup, share and collaborate on their files and data with others.
Dropbox - Online Sync and File Sharing
Google Cloud Filestore - Fully-managed cloud file storage
Google Drive - Access and sync your files anywhere
Mega - Secure File Storage and collaboration
Azure File Storage - Try Azure File Storage for managed file shares that use standard SMB 3.0 protocol. Share data with on-premises and cloud servers, integrate with apps, and more.