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
AnyFix - AnyFix is a tool that provides a solution for almost any iOS issue you may come across, from your device crashing or not syncing accounts to having trouble with your connection or speaker/headphone jack.
Google Drive - Access and sync your files anywhere
iToolab FixGo - When your iOS device gets stuck on the white/black screen, Apple Logo, Recovery/DFU Mode, restart loop, is bricked, as a frozen screen or simply won’t start, iToolab FixGo is the ideal solution for you.
Mega - Secure File Storage and collaboration
FoneDog iOS Data Recovery - Recover photos, videos, contacts, messages, call logs, and more from iPhone, iTunes and iCloud.