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.
Zoho Creator - Zoho Creator is a low-code application development platform that helps you build a custom, mobile-ready apps to run your business.
Dropbox - Online Sync and File Sharing
Knack - Knack is the easiest, most spectacular business management software available.
Google Drive - Access and sync your files anywhere
QuintaDB - Solution for creating web forms and databases online where no progamming is required.
Mega - Secure File Storage and collaboration