Purple Lady, one big issue with Tapatalk is lack of software quality management. I lost count of the bugs (many of them reoccurring) and security issues that I have encountered over time. Sure, no software is bug-free, but the kind of bugs and the frequency they occurred made me think twice about Tapatalk.
If you feel like it check out their forums for customer (=forum admins) feedback:
https://support.tapatalk.com