One software license is required per developer.
Runtime Royalty Free.

SurveyJS offers a perpetual, developer-based license for its Survey Creator library, allowing a one-time payment for indefinite use. Access to updates and technical support is subscription-based, with the first year included for free, granting permanent access to versions released within that period and support through a dedicated Help Desk. Renewing the subscription ensures continued updates and support. A license is required for each developer working with SurveyJS APIs and implementing the integration, but not for team members using the libraries solely for compiling and building.

Examples:

License Scenario 1:
A company decides to build a survey module into their application, so that admins can create and update forms. The company operates across multiple domains, and a total of 4 developers will work with the SurveyJS products' APIs and implement the integration. Additionally, there will be 16 admins creating surveys, and the company expects around 50,000 form submissions per month. In this case, the company will require 4 developer licenses.

License Scenario 2:
A web development company builds a SaaS project for a client, they need to purchase a license for each developer involved in implementing the SurveyJS library integration. As long as the client’s own development team does not directly work with the SurveyJS API, only the web development company’s developers require licenses. Licenses are only required for developers, regardless of how many users create and submit forms and surveys.

SurveyJS Survey Creator is available in different plans: