WordPress for Android puts the power of publishing in your hands, making it easy to create and consume content. Write, edit, and publish posts to your site, check stats, and get inspired with great posts in the Reader. What’s more? It’s open source.WordPress for Android supports WordPress.com and self-hosted WordPress.org sites running WordPress 3.5 or higher.
Blogspot : With the Blogger app for Android, you can quickly and easily publish posts to your blog wherever you are.Download the latest release of the official Blogger app, and start blogging on the go
Features
  • Write Articles
  • Compose a post that you can save to draft or immediately publish
  •  Edit existing posts
  •  View list of your saved and published posts
  • Switch account/blog if you have more than one
  • Embed an image from the gallery, or, by taking a picture directly from the app
  • Add labels to your posts
  • Add location information
  • Many More On Both Apps
Guide
  1. Download blogspot or wordpress from given link below
  2. Install any of them usually
  3. Done
Screenshots
WordPress
Direct Download Link
Blogspot
Download Links