I'm a fan of writing your own; it isn't very hard (just send back some data in appWillTerminate: and a quick ruby/perl/python/cgi/whahtever script to parse it i

I'm a fan of writing your own; it isn't very hard (just send back some data in appWillTerminate: and a quick ruby/perl/python/cgi/whahtever script to parse it into results) and it lets you keep track of information like the OS or device type that your users are running. Flurry and the like can no longer collect this data for you due to a change in Apple's dev agreement. Although, with your app, this might not be terribly important information.