Finding the most efficient marketing channel for your app is critical.
If you are bootstrapped you have to be profitable from day zero.
Otherwise the delayed apple payouts and negative cash flow will demolish your growth
This guy Tomer who built an $80K/month app in less than a year says:
"Every channel works. UGC, influencers, paid ads, SEO. The question is which channel is the most efficient for your specific market? For me, it was paid ads. CPMs are significantly lower than in the US, so you can run paid ads profitably without a ton of testing the capital."
"Once I had traction and the social proof needed, I partnered with big influencers on a revenue-share so incentives were aligned. The more money I make, the more money they make. That’s what took the app from $20,000 to $80,000 per month."