Thanks for the reply. I'll try to keep doing cold emailing, though sometimes I feel that I'm just emailing a wall who never replies. I've read tons of books and courses on how to write best emails and I do follow them - it's just that clients already have a dev team or they are not looking to outsource at that point of time - which boils down to unresponsiveness.

'How much does an app cost' websites do solve a problem - they give the customer instant quote or estimate for their app. And it does also solve the 'getting clients' problem.

Ideally, I want to do something that's a win - win for both.