Another big difference is that Wappler offers also a built-in Front-End Framework called App Connect allowing you to fully build dynamic reactive web sites. You can populate and use any data source and indeed together with the database connectivity it is a strong winner.
App Connect is similar to ReactJS, Angular and VueJS - but much simpler to use in Wappler as it is all visual data binding and repeat regions. So you see directly your page rendered with the latest data straight in Wapplers design view.