It’s really simple to find which version of WordPress.org you’re using for your blog when you’re blogging using BlogPad Pro for iPad.
Go to Manage Blogs > Edit Blog Settings
Scroll to the bottom of the page and you will see your WordPress software version:
You can also find your WordPress version by looking in your blog file system.
There is a file in your blog directory wp-includes/version.php. If you open this in a text editor you can see the version number.
This is only for WordPress.org (self-hosted) blogs, if you are using WordPress.com you don’t need to worry about which version as this changes automatically.