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.
Worldox GX4 - Worldox creates easy to use document and email management tools for businesses of all sizes. Improve workflow with the best mobility and sharing software
Dropbox - Online Sync and File Sharing
Nitro Productivity Suite - Equip every user with PDF productivity and unlimited eSigning—while still cutting costs in half. With Nitro Productivity Suite, you can reduce printing and measurably advance digital transformation.
Google Drive - Access and sync your files anywhere
Hubdoc - Hubdoc gets your key financial docs in one place, automatically.
Mega - Secure File Storage and collaboration