Breaks my phone

I have used period tracker for years and been perfectly happy with it. But I have been having recurring crashes on my iPhone 6 and search doesnt work on the phone, so I wiped my whole phone and started from scratch, only gradually restoring my apps one by one over a series of weeks. When I finally reinstalled P Tracker my phone crashed and search stopped working! So I think its the culprit -- as soon as I uninstalled, search started working again.

awsamuel about Period Tracker Deluxe, v9.5.1