I just purchased this App. I have a new iMac Pro and wanted a quick easy way to read and send yahoo mail. I get a ton of junk mails in my yahoo account and this keeps me from havig all the junk mixed in with my good email. This app has a very simple user interface and lets me send and view emails. I really like it. There is one bug where it keeps sending the same email as long as you stay on the message sent screen. Clicking on the home button right after a message is sent stops it from doing this. Hopefully they fix that soon.