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.
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.
Dropbox - Online Sync and File Sharing
Doccept - Doccept is an electronic document management system (DMS) software allows businesses to streamline processes.
Google Drive - Access and sync your files anywhere
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Mega - Secure File Storage and collaboration