I'm sure people have their reasons for wanting apps other than the default, but for the life of me I can't think of anything that could make me prefer other options. What do other mail apps do that mail can't, and do you really use email that much that it is important to have a different app? Genuinely curious. I don't use email in my job very often and safari takes me to the pages I want to read without any fuss. Even keeps my bookmarks synced with my Mac. What else does it need to do? Are there features I'm missing out on by using the default apps?