Calculator

I had no calculator app listed on my new phone, so I looked in PlayStore. Top of the list was advertised a simple app. I tried installing, but it opened to a link to TikTok, which started to play videos - so I uninstalled it from phone settings. I looked again in PlayStore, only to find that apparently there was a calculator already on my phone (perhaps transferred from my previous phone). I tested the calculator - in some ways better, scientific, but no memory function - I shall uninstall.

Stupid app runs in background and has high memory usage and slows down my device. Yes I've tried clearing cache and force stop but it just restarts on its own I've disabled background data usage. An still it wants to be running in the background all the damn time. I am so close to uninstalling it but as soon as I do a few days later I need the darn thing. I've tried using others but don't like them as I'm used to using this one. Fix it or I'm going to have to put one into my car

It's a functional calculator which is fine and I don't mind the layout. However, it's hard to find the history and I hate that there is no conversion option (for length, weight etc) which I have used extensively on other phones default calculators. It's fine but that's all I can say.