I feel betrayed

I installed a trial app by this developer which allows to copy the EXIF timestamp to the creation date (amongst other date change functions). Although quite pricey for such a simple task this batch function would have saved me a lot of time so I bought what looked to me like the full version (same logo, same description of functionality). However, this one has even fewer functions. All you can do is to set creation and modification times (which are both messed up in my case).

apnklink about File Date Changer 5, v5.19