No trial version. No customer service.
I was interested in the Passper software, sold by iMyFone. The sight claims they offer a trial version. In fact, there is no trial version for their software - you download and install the alleged trial version, but when you try to do anything with it it requires that you purchase the software first. So, there is no way to evaluate their product before you pay for it. I wrote to them to ask whether there was any way of trying before buying - five working days already and no answer. I would not trust this company with my money.