Article Submission Pro gloats that it submits to 150 directories for you. They also send your article out to a bunch of email subscribers who probably won't read it, let alone post it so it helps your SEO. Article Submission Express submits to 7000+ directories and ezines to quickly boost your SEO results.

Article Submitter Pro allows you to create and modify your article just like you can do in Microsoft Word. Article submission express does the exact same thing, and if you want to do it in a seperate application and then upload it to Article Submission Express then you can do that as well.

If you want to take an article off your website and submit it, you can do that with Article Submitter Pro. Article Submission Express says this is a no no because that is duplicate content and the search engines will not count those submissions.

Article Submission Pro is not big and bad because you can have unlimited bio boxes. The fact is Article Submission Express allows the same thing, and they take it a step further. They submit random resource boxes so that the search engines don't think it is the same article, because it is not.

With Article Submitter Pro you can store your login information to each of the directories saving you a little time. With Article Submission Express you don't even need logins to the article directories thus saving you a bunch of time.

Each article directory you want to submit to has to be selected with Article Submitter Pro. With Article Submission Express they select the directories based on your articles keywords so you don't need to tell it where to submit.

Article Submitter Pro allows you to watch in real time it scanning and uploading to each directory as it does it. Article submission express submits them automatically without using your computer to do it.

You can stop yourself from submitting duplicate articles with Article Submitter Pro's spam filter. Article Submission Express will just not send duplicate articles to the same directory, nor will it send duplicate articles to different directories.

With Article Submitter Pro you get to register at all of their directories so the software can submit your article. Then you get to confirm your registration at each directory through email. With Article Submission Express, not only do they do the registration, they don't make you answer emails from the directories.

Article Submitter Pro will submit the exact same article over and over again to 150 directories. Google will count 1 of them and disregard the rest as duplicate content. Article Submission Express, on the other hand, will submit a unique article to up to 7000 directories for you.