StoryChief fetches stats periodically for social channels. This means we can have a delay when comparing to the channel in question.
If you're using other tools to track your pageviews (ex: Google Analytics) differences between both platforms can occur for multiple reasons, especially between the number of reads and number of views:
You might have configured Google Analytics to ignore certain User-Agents and/or IP addresses.
Your visitors might be using ad blockers that blocked Google Analytics but not StoryChief (or vice-versa).