I'm currently using: QGIS 3.2, OS: Linux (Ubuntu)
The Boundless plugin i.e. QGIS web app builder isn't supported on QGIS 3 version I guess. I tried installing it through the zip file method but facing an error:
Couldn't load plugin 'webappbuilder' due to an error when calling its classFactory() method
Is there an alternative for building web apps or to this plugin (open source only)?