Please update – KenKen Classic Review

I’ve played this game for years. I had trouble a little while back buying more puzzles, and it mistakenly game me thousands and charged me twice—WAY more than I wanted to spend. I asked for a half refund, but they never even bothered to respond, after multiple tries. OK. Now, the app is so sluggish as to be unusuable after the iOS14 update. I hope they haven’t abandoned us b/c you’d think they’d have prior knowledge. That’s happened before. If they fix this quickly, I’ll add stars.
Review by OMG with thr names already on KenKen Classic.