The strength of Soulver lies in its flexibility. Full-fledged spreadsheet apps like Numbers and Excel have their place. However, day-to-day life requires calculations that don't demand that level of horsepower and benefit from contextualizing numbers with text. It’s the kind of math that happens in notebooks and on the back of envelopes. By combining elements of a text editor, spreadsheet, and plain English syntax, Soulver commits those easily-lost notebook scribblings to a format that allows for greater experimentation and easier sharing.
During WWDC last week, Acqualia Software released a major update to the app. Soulver 3 for Mac features an updated design and substantial new functionality that I love. The app has never been easier to use, and its implementation of a sidebar to corral sheets is fantastic.
However, unlike its predecessor, version 3‘s file format is incompatible with the iOS version of the app and earlier Mac versions. Soulver also saves its data as a single ‘sheetbook’ file now, which means it can no longer save or manage sheets as individual files saved to arbitrary locations on your Mac. Both changes will be problematic for some users who may want to wait for future updates that the app's developer has said are in the works.