Given that their website is a broken inaccessible train wreck of how NOT to build a website? Not an auspicious start. Given that their site has no graceful degradation, and their lazy-loader on large displays makes it look like their pages have no content until you scroll? Yeah, about that...
Given that it appears to use the laundry list of developer ignorance, incompetence, and outright scam artistry that is bootstrap? Yeah, I'll pass.
If their website is any indication of the quality of what it makes, (I note a lack of completed example sites?) then like a great many other systems -- like those they compare themselves to -- this is nothing more than a predatory scam meant to take advantage of the ignorant, gullible, and hopeful.
It is painfully clear from the work presented that they do not know or understand enough of HTML or CSS to be telling others how to use said technologies... as evidenced by how their own website tells large swaths of users to BOHICA. It's the typical scam-like preying on hopes, dreams, and fears so common to such "shortcuts" that in the long term do nothing but screw over the poor sods SUCKERED into using them.
As I often say if you don't know what's wrong with code like this:
<body id="index" is="dmx-app">
<dmx-lightbox id="lightbox1" autoplay="true" loopvideo="true" animation="fade"></dmx-lightbox>
<nav id="nav-top" class="navbar navbar-expand-lg navbar-dark bg-wappler">
<div class="container"> <a class="navbar-brand" href="/"> <img src="img/wappler_icon.svg" width="32" height="32" alt="wappler logo"> </a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#nav-collapse" aria-controls="nav-top" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button>
<div class="collapse navbar-collapse" id="nav-collapse">
<div class="navbar-nav ml-auto">
<a class="nav-item nav-link" href="/">Home</a>
<a class="nav-item nav-link" href="features">Features</a>
<a class="nav-item nav-link" href="comparison">Comparison</a>
<a class="nav-item nav-link" href="learn">Learn</a>
<a class="nav-item nav-link" href="docs">Docs</a>
<a class="nav-item nav-link" href="extensions">Extensions</a>
<a class="nav-item nav-link" href="pricing">Pricing</a>
<a class="nav-item nav-link" href="download">Download</a><a class="nav-item nav-link" href="community.wappler.io" target="_blank">Community</a>
<a class="nav-item nav-link" href="blog.wappler.io" target="_blank">Blog</a>
</div>
</div>
</div>
... then you have ZERO BLASTED BUSINESS telling other people how to build websites.
Might sound harsh, but that's the truth of it. Just more sucker-bait to take advantage of those who don't know any better.