I have also sent this by email to support but will post it here in case that helps anyone else:
I'm sorry about all the issues you've run into here.
mSecure 5 includes both Free and Pro features. The Free features can be used forever at no cost. The Pro features are free to try for 30-days. After that, a single one-time purchase entitles you to use the Pro features on all of your devices on multiple platforms. Our mSecure Pro license for mSecure 5 is a one-time purchase that gives you access to all the mSecure 5 features on iOS, Android, Mac, and Windows. Minimum system requirements: iOS 9.3+; Watch OS 2.2+; Android 4.3+; Mac 10.10+; Windows 10 (UWP)
This allows you to use mSecure 5 and try it out before even having to pay. Again, I'm sorry about all the confusion you experienced. However, we're here to help. We offer chat support, forum support, and email support to answer any questions you might have and would have been happy to have walked you through any issues you were having before you had to pay anything or the second time. Please note that our forum and chat support are the quickest way to get a hold of use. Email support can take a business day to get answered.