DocuSuck is a web-based electronic signature service positioning itself as a no-cost alternative to DocuSign. On its “Free DocuSign Alternative 2026” blog post, DocuSuck claims to offer “five free sends, no monthly fees, [and] pay-per-use pricing,” enabling users to upload PDFs, add signature fields, and send documents to unlimited recipients without subscription costs. https://www.docusuck.com/blog/free-docusign-alternative-2025