OneSpan Sign vs DottedSign Comparison: Everything You Need to Know Before Choosing

DottedSign is an electronic signature solution from Kdan Mobile, the Taiwanese software company behind the PDF Reader and Animation Desk applications. The product is designed to digitise the signing process for businesses so that agreements, approvals and forms can be completed quickly and securely without paper. It addresses the delays that arise when documents must be physically routed between parties, particularly for distributed teams and customers who expect to transact from mobile devices. DottedSign's approach combines a web application with strong native mobile apps, reflecting Kdan's background in mobile productivity software, so that documents can be prepared, sent and signed from a phone as easily as from a desktop. Signatures are designed to comply with ESIGN, UETA and eIDAS, and each document carries a verifiable audit trail. Key features include reusable templates, sequential and parallel signing flows, bulk sending, signer authentication through email or SMS verification, automatic reminders and deadline settings. Senders can add signature, initials, date, text, checkbox and attachment fields, and track document status in real time through a dashboard. Signing links can be shared publicly for forms that many people need to complete, and in-person signing supports face-to-face transactions. Team and enterprise plans add shared templates, role management, custom branding and centralised administration, and DottedSign offers digital certificate options to strengthen document integrity. Integration with Kdan's broader document suite provides PDF editing and conversion, and the service connects with Google Drive, Dropbox and other cloud storage providers, with an API available for embedding signing into business systems. Security measures include encryption and compliance with standards such as ISO 27001 and SOC 2. The product is used by small and medium-sized businesses, sales and HR teams, education providers and professionals across Asia, North America and Europe who need an affordable and mobile-friendly signing tool. Pricing starts from around USD 8 per month with a free trial, and a free version is available.