Conversions are nice, but…
Nice to have ConvertBots functionality (sort of) built in, but the conversion mode is rather inconvenient and not well designed. Once you switch to conversion mode to choose the units, you have to switch back to calculator mode to enter numbers, at which point you can no longer see the conversion. Much worse workflow/experience than ConvertBot, and not good enough to replace a dedicated unit converter app.
Stormchild about
Calcbot 2, v2.1