TechTool Pro 12
TechTool Pro 12 is designed to help you test and repair your Mac. The app is feature-packed with benefits that all Mac users need for comprehensive diagnostics, repair, and maintenance. Using the new Check Computer Suites, you can set up a variety of test suites for your needs. You can use the built-in Full, Intermediate or Quick suites or make your own suite of tests to perfectly suit your needs.
TechTool Pro will test, rebuild, and repair damaged directories on corrupted Mac OS Extended hard drives, and optimize the data directories when they are repaired. TechTool Pro can also repair Apple's new APFS file system, standard Mac OS Extended volumes, as well as MS-DOS (FAT32) and ExFAT formatted volumes.
TechTool Pro helps you recover your data from corrupted drives or volumes that don't mount on the desktop to save the data to another location. The app can test your Bluetooth, Wifi, Ethernet and any other network interface.