Startup Idea: App Finder and Compatibility Checker

Startup idea to develop a tool that can search for required apps in various app stores and ensure its compatibility with the user's device, simplifying the process to a single click 'download now' option.

Personally, I run into "find our app in the app store," which frustrates me considerably. I don't want to have to search to have to find what I need, and is the "app" useable on a pc, which is what I use more often. What I would like is a program that can find the app for me and then tell me if I can use it on the device I'm currently on. Something that simplifies the process to "download now" yes or no.