Video review for a crossword app

We have just launched a crossword application and we wish to start a promotion and ad prohgram but before that we need an attractive video review for the app. The review, based on describing the use and features of the app will be used on our web page, youtube and blogs. So, we need a native speaker of English (American) to do 1-2 minute video review. The link to our app is: [login to view URL] If you ahve done similar work, that would be a great help. Thanks in advance!