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
Smart-Save by Stash - Save your spare cash, automatically.
Google Drive - Access and sync your files anywhere
QuietGrowth - QuietGrowth is a digital investment management service or robo advisor. It manages the investments of clients to achieve risk-optimised returns over the long-term.
Mega - Secure File Storage and collaboration
Raiz - Invest spare change automatically from everyday purchases into a diversified portfolio.