Access Limitations to Timelines


We have a mobile application that reads the timeline of selected users and shows those feeds to users. We are currently requiring the user to sign in to Twitter with their account to enable that functionality. However we would like to allow them to preview the timeline before they sign in. In order to do that we would need to signin with Twitter using our company account. Our concern is that we might have too many signins and then have our account get locked. What are the limitations to doing this?