Its September report - based on 105 million unique users playing over 5,000 mobile games - focuses on the mobile advertising business.
Outliers
Looking at companies who pay to drive installs of their apps and games - so-called Cost Per Install (CPI) campaigns - the most expensive countries turn out to be Canada and Australia.
This is because many companies soft launch their free-to-play games in these smaller English-speaking countries to test them before going global.
The average cost per install in these countries is around $2.50.
Chartboost labels markets where companies are prepared to pay more than $1.50 per install as primary markets. These include the US, UK, Singapore, France (all with a +$2 average), while Germany, Italy and Hong Kong are slightly cheaper.
Press it
Another way of breaking down market trends are the cost differences between CPI and campaigns accounted in terms of users clicking on mobile ads (Cost Per Click, or CPC).
Chartboost notes that the attitude of advertisers can be categorised in terms of how they spend on these two.
CPI is a fairly straightforward business, as companies spend less per install than they know they can generate per user once they're playing a game. At least if they hope to be profitable.
The only reason to spend more on each install than you think you can generate from each user is because you're spending to build up user market share i.e. platform companies such as DeNA and GREE.
Hosing the market
The situation is much more confused for CPC campaigns, however, as there's little understanding of how many clicks you need to get an install and so it's much harder to optimise campaigns.
For this reason, CPC prices - while much lower than CPI prices c.$0.10 - tend not to vary much across different territories.
And this is why Chartboost label publishers who do CPC campaigns as aggressive bidders.
"CPC advertisers are high-risk, high-reward," it states. "The advertiser assume the risk of any click not resulting in an install, so the publisher gives them more traffic."
You can see the full infographic at Chartboost.
