I am using the yahoo for 16 years,and yahoo mail app ios for almost 10 years ago.My app language was english and then suddenly change to arabic language.And a lot of people are having the same problem.And they dont have a support team for Turkey.SO IF YOU WANT IMPROVE FIRST FİX THE LANGUAGE PROBLEM AND THEN MAKE A SUPPORT TEAM OR A MAİL FOR TURKEY!!!!WE ARE USİNG THİS APP TOO!!!!