The best File Recovery alternative to TechTool Pro is Disk Drill, which is free. If that doesn't suit you, our users have ranked more than 10 alternatives to TechTool Pro and three of them are File Recovery Tools so hopefully you can find a suitable replacement. Other interesting File Recovery Tool alternatives to TechTool Pro are DiskWarrior and Scannerz.
Retrieve deleted files with advanced scanning on various drives and file types. The free trial recovers up to 500MB, with Recovery Vault for protection and disk backup in case of failure.
DiskWarrior is the safest, most technologically advanced, most powerful utility to eliminate directory damage and recover your files, folders and documents. DiskWarrior is so advanced it can even recover your data from a failing hard drive.
Diagnosis of hard drive or cable problems. The package includes testing, cloning of hard drives with bad sectors, creating bootable usb drives. http://scsc-online.com/Scannerz.html.
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TechTool Pro does hardware tests as well as file recovery. Disk Drill is mainly geared to file recovery.