I use getresponse for all my email needs. I know I could connect it thru Zapier, but unfortunately it's a premium app and I need a paid account for Zapier.
I am looking for a spot to open my own store but need my inventory integrated with my other sites. Teapplix does a great job for my inventory management, they also integrate with my accounting software, at this time not being on teapplix's long list of integrations is my only real hangup, but it's a big one for me
I use getresponse for my abandon cart sequences, welcome emails, sale announcements and regular broadcasts
Great affiliate tracking software and would definitely be a good integration for Subbly.