Calculator One comes to mind. Free, no ads, no tracking, no subscriptions… https://apps.apple.com/de/app/calculator-one/id6443944834 https://apps.apple.com/de/

Calculator One comes to mind. Free, no ads, no tracking, no subscriptions… https://apps.apple.com/de/app/calculator-one/id6443944834 https://apps.apple.com/de/app/calculator-one/id6443944834