Free version just one big advertisement
Although the full version looks pretty good, Im a little miffed about the complete lack of functionality in the free version. Bird lists are unorganized, searches allow you to look at birds but not listen to them, "around me" shows icons, but you cant explore in more detail. All actions ask you to purchase the full version. Id rather have a fully functional trial version!
FondOma about
Bird Songs - Bird Call & Guide