There's a shout out to Soulver in the FAQ https://docs.numpad.io/#did-you-invent...

		tonyonodi 62 days ago \| parent \| context \| favorite \| on: Show HN: I rewrote my notepad calculator as a loca... There's a shout out to Soulver in the FAQ https://docs.numpad.io/#did-you-invent-the-notepad-calculato.... It's a great app, but Mac/iOS exclusive, and I think NumPad handles unit calculations a bit better (though I'm biased).