WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
iMyfone iOS System Recovery - Totally Repair Your iOS System without Data Loss
WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
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.
TreeSize - TreeSize tells you where precious disk space has gone to.
FoneDog iOS Data Recovery - Recover photos, videos, contacts, messages, call logs, and more from iPhone, iTunes and iCloud.