Soulver 3

 Soulver 3.4.9 | macOS | 15 MB.

Soulver 3 is a smart notepad with a built-in calculator. It gives instant answers to any calculations it finds in your text. It's a better way to work stuff out than with a traditional calculator, and a more lightweight tool for quick calculations than a spreadsheet. 

Math Features
    •    Instant calculations, no equals required
    •    Use words alongside numbers, so calculations make sense
    •    Quick totals of all your lines, and subtotals
    •    Calendar calculations (June 9 + 3 weeks, 3:35 pm + 6 hours 27 minutes)
    •    Easy percentages ("$300 - 10%", "30 as a % of 200")
    •    Unit conversions ("10 kg in pounds, "25 meters in feet")
    •    168 live real-world and cryptocurrency rates.
    •    Line references to build little calculating documents
    •    Variables & variable autocompleting
    •    Global variables & custom units


App Features
    •    Dark mode
    •    Sidebar for organising your sheets and the ability to make folders
    •    Headings (#), comments (//) & labels (:)
    •    Customize your syntax coloring & font
    •    Automatic number formatting, with spaces around operators and thousand separators
    •    Number scrubbing (hold shift and hover over a number)
    •    Deep macOS system integration: Touch Bar support, Quicklook, Calculate anywhere services
    •    Automation tools: a command-line interface, Alfred workflow, Automator action

Compatibility: OS X 10.14 or later 64-bit
Homepage: http://www.acqualia.com