Bank apps (eg. HSBC's consumer app). For the most part they are buggy, crashy, slow, lacking in features, and fail to do useful things (like support copy paste, export transactions to CSV, email transaction, etc)
HSBC app shudder, I rage quit the bank because of it, transferred everything over to Monzo. Truly infuriating and I think it's the only bad app review I've ever left.
