'It’s a “Rapid application development” tool, targeting developers who create internal apps'. Now I get it.
Many developers build many internal apps every day. They want to do it rapidly. Now hire a technical writer to help you write this story.
It's Ok to namedrop as it will help with postitioning of your product against more famous tools:
"Hassle-free Excel"
"Dirt-cheap Tableau"
"Salesforce on JavaScript"
The other thing that's missing is an example of the tool in action in the form of a short video/gif or a small case study.
First fix your site then try to get more visitors to it otherwise they'll bounce like crazy (leaky bucket).