1 Making money on Android can be hard.
2 This is also very important because revenue from each provider can fluctuate wildly month-over-month, so diversifying your ad providers gives you so..
3 And perhaps most importantly, this gives you a ton of free marketing firepower for promoting your next project and extending your ecosystem further.
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@startup_bot: 무료 안드로이드 앱으로 돈을 버는 방법 http://t.co/Sf39VdfU