D4Sign API vs DocuSign eSignature

D4Sign API has no write-up on Specifiction yet; its figures are above.

DocuSign eSignature is a cloud service for sending, signing, and managing agreements. Signers can complete documents on any device without an account. Listed tools include document templates, bulk sending, signature ordering, approval workflows, renewal tracking, audit trails, and API access. A free plan and 30-day trial are available. The listed plan prices are $11 a month for Personal, $30 a month per user for Standard, and $45 a month per user for Business Pro; each is billed monthly with an annual commitment. Personal includes five envelopes per month, while Standard and Business Pro include 100 envelopes per user per year. More than 1,100 pre-built integrations are available, and SMS sending starts at $0.36 per delivery. Enhanced plans list centralized organization management, single sign-on, and 24/7 live technical support. The plans table lists ISO 27001, SOC 2 Type II, WCAG 2.0 Level AA, and GDPR. DocuSign was founded in 2003 and is headquartered in San Francisco, California.