Photonic is a WordPress plugin providing registered users of Flickr, SmugMug, Google Photos, Picasa, Zenfolio and Instagram (i.e. the photo service providers) an ability to display photos from these on their WordPress websites.
The token retrieved by Photonic only has the minimal permissions and scope required to read basic profile information and view content. It does not follow, post, like, share or comment on any content on your behalf. This access token is unique to you, and is not saved anywhere apart from your own WordPress installation.
Photonic neither collects internally, nor phones back, nor shares your information with any third-party. Ever.