Press escape to show a menu of long variable names, then press return to auto-complete it
Press escape to autocomplete long variable names
Hover for variable value
Hover your mouse over a variable to see its value
Control-click on a number and choose Scrub to show the scrubber. Drag left or right on the slider to scrub the number's value up or down.
Scrubbing is only available in the Mac version
Number scubbing in Soulver 3
What day of the week was it on a particular day?
Control-click on a date in the answer column to see what date of the week it was or will be on
Getting the day of the week from a date
Copying lines & answers as an image
A super quick way of sharing calculations is as an image.
Select some lines and go Edit > Copy > Copy Lines & Answers as image. This will place an image onto the clipboard that you can then paste into Messages, Mail, etc.
System-wide Soulver services
You can actually use Soulver to evaluate text anywhere in macOS via services. Simply highlight some text anywhere, right click and choose Services > Calculate with Soulver. There are three services: one calculates and copies the result to the clipboard, one replaces the input with the result, and one appends the result.
Soulver services in TextEdit
Using the macOS keyboard shortcut system preference, you can assign a keystroke to these services, making it super quick to use Soulver outside of Soulver.