Very interesting idea with great potential. I'm sure you will iron out the problems because the demand is certainly there. May I ask what your tech stack is for

Very interesting idea with great potential. I'm sure you will iron out the problems because the demand is certainly there. May I ask what your tech stack is for the app and also are you going to develop a web app and what will be the tech stack for that? Or is a web app seen as unimportant?