Dropbox Sign API vs PearSign

Dropbox Sign API lets developers add electronic signature workflows to their own websites and applications. Embedded request, signing, and template-management steps can appear in iFrames, with custom branding for senders and signers. Reusable templates can hold preloaded data for recurring signature processes. The service connects with Dropbox, Microsoft Word, Salesforce, Google Drive, HubSpot, Slack, and other CRM, storage, and productivity tools. Its listed security provisions include OAuth 2.0, 2FA, AES 256-bit encryption at rest, and non-editable audit trails that time-stamp document actions. Dropbox Sign lists SOC 2 Type II, ISO 27001, eIDAS, and GDPR compliance. Its signatures are legally binding in the United States, European Union, United Kingdom, and many other countries. SDKs are available for Python, Ruby, PHP, Java, NodeJS, and C#, and development help is available through documentation, the Help Center, and email support engineers. Senders and signers can use the service end-to-end in 22 languages. Free plans are listed; paid pricing starts at $75/mo. More than 500 requests per month requires contacting sales.

PearSign is a platform for drafting, sending, signing, and managing contracts electronically. Users can upload PDF or Word documents, add signature and other fields, send them to signers, monitor status, and receive a sealed PDF. For a new agreement, users can describe terms in plain language to generate an editable draft with clauses to review and change; PearSign says the feature is not legal advice. Guided mobile-first forms accept validated answers and file uploads, and signers can complete them through a link without an account. Completed documents receive an AATL-backed PKCS#7 seal via Sectigo and a certificate of completion. The audit record includes timestamps, signer details, IP address, device and authentication information, and a document SHA-256 hash. PearSign lists integrations including Google Drive, Dropbox, Salesforce, Twilio, and Postmark, plus a REST API and webhooks. Its documentation says test keys are disabled while an isolated sandbox is being built. Free includes 3 envelopes per month; paid plans start at $15 a month. After the monthly allowance is exhausted, new envelopes wait until reset or upgrade.