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
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Google Drive - Access and sync your files anywhere
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Mega - Secure File Storage and collaboration
Slack - A messaging app for teams who see through the Earth!