Trying to remember the name of a website

Hi, I don't know if it's the right place for my question (sorry if not: an admin can delete it) but most of the people here are aware about startups and new services so maybe you could help me. I'm trying to remember the name of a startup/website. It allows to create automatic "tasks" to make things happen between several services you have (Dropbox, sendgrid, etc.) For example, a use case was: send automatically an email using sendgrid when a new file is put in my dropbox. And you can define several combinations like that. Any idea of what this startup is? Thanks.