Messed up upgrade process/data hostage

I am more than happy to pay for apps. However, I have little patience for apps that make you pay every time for a data export. You cant access your data otherwise, like to look at it in a spreadsheet. You cant change your email address. The UI hasnt been updated in ages. There are better apps out there.

mildop1 about iPeriod Period Tracker +, v6.6