Closeup photograph of four out-of-focus sets of hands in a circle holding mobile phones Closeup photograph of four out-of-focus sets of hands in a circle holding mobile phones

OneSpan Sign Mobile SDK

Easily add electronic signatures to your native mobile apps with our Mobile SDK for iOS and Android

Fully customize the mobile e-signing experience for your customers and unique app requirements

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    Developer Tools

    Get up and running in minutes using our powerful mobile SDKs and comprehensive developer resources

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    Differentiate yourself from your competitors by creating a unique customer experience tailored
     for your brand

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    Easy for Signers

    Ensure the most seamless,
    white-labeled, mobile signing experience to promote high adoption and completion rates

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    Offline Signing

    Get documents e-signed even if there’s no internet connection –transactions are automatically synced up with the service once online

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    In-Person Signing

    Enable field workers to capture customer’s signatures in a face-to-face environment using their mobile devices

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    Enterprise Plan

    Get our mobile SDKs for iOS and Android as part of the OneSpan Sign Enterprise Plan - no extra charge

Easy for Signers

  • iPhone - Signers Invitation

    SIGNING INVITATION: The signer receives an email invitation with a link to access the document to sign. For added security, the signer may be asked to authenticate their identity before accessing the document if requested by the sender.

  • How it works for signers - review and sign document

    REVIEW & SIGN: The signer is guided to sign, initial and enter additional signing information into the document. Once signed, the document is automatically routed back to the sender, or to the next person who must sign the document.

  • For signers - review and sign confirmation

    REVIEW & SIGN: The signer is emailed a link to the completed document once every person has signed. The signer can then download the final e-signed documents.

Easy for Developers

Build a working prototype in as little as 10 minutes and go live within just a few days

Notebook - Easy For Dev

Our Mobile SDKs come packed with everything you need to ensure rapid development and deployment. This includes full SDK libraries, out of the box UI and sample code, comprehensive documentation, an active developer community, and much more.

Build a working prototype in as little as 10 minutes and go live within just a few days

iPhone - easy - for - dev

Customize the user interface of the screens to ensure a seamless mobile signing experience for your customers. This includes your preferred signature capture methods, such as hand-drawn signatures or tap-to-sign, white-labeling options, and signing workflows for multiple signers and documents.

  • Compare a white-labeled signing experience with no white-labeling

    White labeled


    OneSpan Sign’s brand doesn’t appear in any of the interfaces or email notifications.  Your brand remains in the spotlight to ensure the most seamless user experience. This helps drive high adoption and transaction complete rates.

    Not white labeled

    Not White-Labeled

    With some e-signature vendors, their brand is part of the user experience creating confusion and risk of customers dropping off. What’s more, emails are sent from the vendor’s servers, creating the risk of phishing scams,  malware and potential lawsuits as a result.

Notebook - Dev Community

Get up and running quickly and easily with a wide range of developer tools, resources, and our active online community.

  • Access to a free sandbox account
  • Get answers to your questions
  • See sample code and use cases
  • Download product documentation
  • Learn best practices from your peers
  • And more

Visit our Developer Community

Get it Now

Get our Mobile SDKs as part of the OneSpan Sign Enterprise Plan, and start integrating e‑signing capabilities in your mobile app