I purchased the Mac version of DiskWarrior based on the reviews on pcmag.com. After downloading, the software did not do anything to recover any files from my hard drive. I called their tech support and left my number. The recording on the tech support said they will return calls back after 2 hours. I did not receive a call back, and being a time sensitive issue, I called their main customer service line and explained how they did not provide me any value for the money spent. The customer service lady even tried calling their tech support and could not reach them. I asked for a refund based on my experience and they denied me. Beware of your experience with Diskwarrior.