Good app, but beware the paid version – Clue Period Tracker & Calendar Review

I’ve been using Clue for 7ish years and liked it a lot. I finally decided get the paid version at the end of this year. Some of my data that I relied upon (PMS, most annoyingly) disappeared off my calendar. The customer rep I messaged with was not helpful or apologetic at all, tried to tell me it was somehow a benefit to me to spend months tracking and reentering my data. Should come with a warning that upgrading can disappear data.
Review by Giving in on Clue Period Tracker & Calendar.