Chartboost has the tools to make it simple to create and target custom-built groups of devices, countries, or apps: http://cboo.st/1unYRQW
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Chartboost has the tools to make it simple to create and target custom-built groups of devices, countries, or apps: http://cboo.st/1unYRQW