We just completed an embedded signature integration with HelloSign. The HelloSign API plans were expensive - but still a fraction of what DocuSign charged (at t

We just completed an embedded signature integration with HelloSign. The HelloSign API plans were expensive - but still a fraction of what DocuSign charged (at the time HS was 20% as expensive - pricing seems to have gotten more comparable now). Integration was easy. The Ruby SDK & JS lib worked great (we have Rails back-end / React front-end). Customer service has been good & responsive. They have to approve your UI before giving live access - but once we had the integration working it took < 1 day to schedule the meeting, do the screenshare, and get approved. Two slightly annoying things: (1) they don't have per-request fees if you go over your allotted usage. You'll get automatically bumped to the next plan which gives you 3x the request and is almost twice as expensive. (2) they wouldn't let us go month-to-month since we had an existing annual plan that we wanted to be under the same account (so we can share templates). This is tough since it's difficult for us to predict how many requests we'll need.