I was already using the free version of Bit Integrations as it was the only tool I could find that integrates NinjaForms to Acumbamail (another AppSumo purchase from approx a year ago).

Saw Bit Integrations come up on AS yesterday and immediately bought a Tier1 licence so that I can have more than the 1 integration the free version provides.

Nice product, simple to use, if you are an Acumbamail user it's the only game in town. Looking forward to experimenting with some of the other integrations.