Perfect for me

I need to be able to provide simple online calculators for my visitors, I don’t need anything too elaborate, just how long things will last if used at differing rates, how payments vary over time etc…

For this the free plug in is perfect, even with some quite complex calculations.
I’ve tried a few others but this is very simple to set up and use and has unlimited usage (certain other plugins restrict use to n per month then replace the calculator with a link to their website, ouch) for my visitors.

I am so impressed that if I do need any of the advanced functions later on I shall definitely buy the pro version.