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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Not sure if it fits, but have you tried excalidraw? It's web based, so device doesn't really matter, and it have some libraries of elements that you can add as a library, like Lo-Fi Wireframing Kit. You can also create your own libraries and use them.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.