iPhone app mentioned in Twitter App Card.
https://dev.twitter.com/cards/types/app
Mobile
Get access to data on 377,376 websites Twitter App Card iPhone Customers. We know of 119,740 live websites using Twitter App Card iPhone and an additional 257,636 sites that used Twitter App Card iPhone historically and 75,552 websites in the United States.
Get a list of 377,376 websites using Twitter App Card iPhone which includes location information, hosting data, contact details, 119,740 currently live websites and an additional 152,114 domains that redirect to sites in this list. 257,636 sites that used this technology previouslyand 75,552 websites in the United States currently using Twitter App Card iPhone.
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