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.
Toast - Built to make restaurants better. Toast gives your restaurant the technology you need to succeed in today's fast-paced environment.
Dropbox - Online Sync and File Sharing
Square - Square helps millions of sellers run their business-from secure credit card processing to point of sale solutions. Get paid faster with Square. Sign up today!
Google Drive - Access and sync your files anywhere
Lightspeed - retail and restaurant point-of-sale, ecommerce, and omnichannel solution
Mega - Secure File Storage and collaboration