This app installs a tab to your Facebook Fan/Business Page in which your Instagram feed is automatically displayed, so people viewing your Facebook Page can easily view your Instagram feed or click through to follow you on IG directly from there.
You can also display one hashtag feed of your choice (or up to 5 with our Premium plan) and on the Premium plan you can also moderate the order of your feeds so that your most important content is displayed first on your Page Tab.
When you share a media manually to your timeline, it is done through the Instagram app not our service.
For more information, please refer to this Instagram support article.
Note: The Instagram feed tab is only available on Facebook Fan/Business Pages, not on personal profiles.