You should receive an email with link for downloading.
Please check your spam folder. Sometimes an email can arrive and promptly be placed in your spam or junk folder.
If you are missing an email from us, please check there first and be sure to add the email to your "whitelist" of approved emails.
However, if you didn't received an email with link for downloading your app binary you can find this download link in your App Dashboard, bellow "Ready To Publish" button.