HelloSign is a viable alternative for various applications. We use it and have expanded over time.
Yes I think I am going to go with that :)
I've been using Zoho's signature service as part of Zoho One.[0] It's an incredibly good deal for solopreneurs in that model. Signatures is one tiny part of a huge suite for less than $400 usd/yr
I suggest BoldSign. Pricing is economical. It has all the necessary features including API support. Team document management is excellent compared other vendors.