Simply log in to your account at www.smartfrog.com on a computer and proceed to the "All cameras" Tab and click on "Saved videoclips." Please note, you can not save clips or download clips from the app at this time.
From there you will see a list of your saved clips including a preview picture. When you move your mouse over the picture, you will see a drop down list that includes "Download". Click on "Download" for the clip you wish to save to your computer. Your clip will automatically save to your predetermined folder and you can also find them in your downloads folder.