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.
Safety Culture - SafetyCulture is the operational heartbeat of working teams around the world. Its mobile-first operations platform leverages the power of human observation to identify issues and opportunities for businesses to improve everyday.
Dropbox - Online Sync and File Sharing
flowdit - Experience seamless audits and compliance with flowdit, the ultimate mobile-friendly operations and inspection software. Full-featured, easy to use. Try it for free today!
Google Drive - Access and sync your files anywhere
AuditBoard - AuditBoard is a platform that offers compliance and audit management that allows auditors to analyze, manage, and report the business operations.
Mega - Secure File Storage and collaboration