As someone else here asked: What happens when you're building an improved version of something that already exist? I am currently building an android app that

As someone else here asked: What happens when you're building an improved version of something that already exist? I am currently building an android app that already a lot of competition. Some of these competitors have in-app purchases and some have a separate paid app version . so the product idea itself is essentially validated - a nice chunk of people are willing to pay for it.