Been using Samsung’s calculator app on my phone for about a year now. It’s basically your standard calculator but with some extra engineering functions and unit conversion thrown in. Honestly, it’s one of those pre-installed apps I didn’t think I’d use much but ended up keeping around.
Here’s how it works: you’ve got your basic calculator for quick math, but if you tap that engineering icon, it switches to a full scientific calculator with all the trig functions, logs, and parentheses you’d need. There’s also this history feature where you can see your past calculations and even tap on them to reuse formulas – super handy when you’re working through multiple steps. And the unit converter’s pretty cool too – can switch between like 15 different unit types without needing another app.
If you’re just doing quick math or need some engineering functions occasionally, this’ll cover you. It’s not gonna replace a graphing calculator for serious work, but for phone math it’s surprisingly capable. The interface is clean and it’s free since it comes with Samsung phones anyway. Worth keeping around even if you don’t think you’ll use it much.