Unable to sell

I started working on a quiz solution when my daughter had managed to fracture her right hand.

It worked well for her and definitely helped her with her learning outcomes. Seeing the potential I extended the solution which can be used by school students. The main idea is to merge a quiz based learning app with school ERP. I don't see this happening in the current scenario even in reputed schools in metros, while I am thinking to market my app in tier 2/3 cities for schools where they don't have any thing at all.

The cost is next to nothing, hence the solution can be offered very cheaply.

Unfortunately I am unable to break the sales puzzle.

Partly because, I am working full time and don't want to create issues of dual employment or conflict of interest and hence can't work on the sales side full time.

Let me thank you first for reading this long post.

Now, any suggestions how to approach this?