Blogger is the official Android app for the popular blogging service of the same name. With it, Blogger users can update their blogs, moderate and read comments, and take a look at visits and other site statistics.
With this app, you can work on your blogs just as you would from a computer. From the app interface, you can access all the important features and have full control over your blog at all times.
One of the unique features you won't find on the desktop version (for obvious reasons) is the option to post photos to your blog as soon as you take them. You can take and publish any photo right from the app itself.
Blogger is a good official app for a blogging service. It has all the features you could want and a well-designed interface.