Zac Cohan

Soulver is a notepad calculator you can think through problems involving math in. Mix calculations with comments, and a live "answer column" calculates for you: currency & unit conversions, dates & times, percentages, time zones, variables, and more. All in a sheet you come back to. We pioneered this live-answer-column idea back in 2005 and have been refining it with more features & intelligence for 20 years. Native on Mac, iPad & iPhone — and a one-time purchase, not a subscription.