-> Google Keywordtool - Find Good keyword -> android market -> search keyword -> Upload app for $1 dollar (It will sell if it's a good keyword)
Second step:
Google keywordtool - Find good keyword (same niche) -> Android Market -> Upload a "new app" but free -> the free one advertise for the payed one.
= $$$
Good work
Second step:
Google keywordtool - Find good keyword (same niche) -> Android Market -> Upload a "new app" but free -> the free one advertise for the payed one.
= $$$
Good work