How to create a profitable Freemium startup (spreadsheet model included!)
andrewchenblog.com
JANUARY 28, 2010
CPM/CPA/CPC) What do the intermediate metrics look like? Basically, you end up with a media buying matrix that looks something like this: Source Ads bought CTR Clicks Signup % Upload pic Users Cost CPA Google 1M 0.50% 5,000 20% 50% 500 $5,000.00 $10.00 At worse, it’s easy to lose a ton of money, if the CPA exceeds the LTV.
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