I've made 100K in the app store during my first 8 months. I agree that diversification is key. Don't go for a homerun, go for multiple singles. This is my strat

I've made 100K in the app store during my first 8 months. I agree that diversification is key. Don't go for a homerun, go for multiple singles. This is my strategy and has worked well so far: 1. Always release a free ad-supported version of the app. Advertising revenue has a much better "long tail" than paid apps. There is ~ 5% conversion rate, so your paid apps do better also. 2. Target a specific niche. There is far less competition and you can charge more money. My main apps go for $5 on iPhone and $8 on iPad. If you try to release a "Angry Birds" killer for 0.99c, you are seriously rolling the dice. 3. Re-use the same code base to make multiple apps. This should be done with caution, as there is a fine line between making the most from your work and spamming the app store (which can get you banned). Almost all of my apps share a common code base. This is a sure way to increase discoverability. Anyway, that's been my experience. As full disclosure I HAVE been featured by Apple and reached the Top 60 top grossing on the app store, so my earnings are a bit distorted by that spike. But even in my lowest month, I have never dipped below $7500.