The first Apple app to integrate with Pinterest has just been announced to huge acclaim. Snapguide updated its app on Wednesday this week with the facility to share to Pinterest. Snapguide originally launched on 29 March and has ‘hundreds of thousands of users’ that average more than 23 minutes within the app with 7.6 million items shared to Facebook so far. Snapguide founder and CEO Daniel Raffel talked with Adweek about how that happened. “Basically Pinterest was interested in exploring ways that they could [entice app developers to build somethng that would] enable sharing [via Snapguide]. So one of their engineers came over and spent a couple hours over a…