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
Paperspace - GPU cloud computing made easy. Effortless infrastructure for Machine Learning and Data Science
Google Drive - Access and sync your files anywhere
Shadow - Transform any device into a supercharged gaming machine.
Mega - Secure File Storage and collaboration
Basefolder - Use your home PC as your own personal cloud storage server.