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.
Dropbox - Online Sync and File Sharing
Sync.com - Sync. com offers a backup tool and a file sharing service, rolled into one.
Google Drive - Access and sync your files anywhere
Zoho WorkDrive - File storage & content collaboration tool for modern teams
Mega - Secure File Storage and collaboration
Yandex.Disk - Files on Yandex.Disk won't get lost if your phone or computer breaks.