They do not automatically upload videos to Screencast-O-Matic.com. Your hosting account will only contain videos that you have uploaded. When you upload a recording to Screencast-O-Matic.com you choose the hosting account where you want to upload your video (please note you can upload to multiple hosting accounts from the software. First, verify that you are logged into the Screencast-O-Matic.com account you used when you uploaded the videos and images from the app. You can see your account info under the dropdown on the website.