Digital Trends – The advent of a Facebook photo-sharing app (of some nature) is upon us. And while the service looks pretty impressive and undoubtedly has some considerable pull by being directly integrated with the social network titan, the field is rife with competition. It can be a confusing landscape to navigate depending on your level of interest and commitmentâeven if all you want is to fancy up your photos before sending them on their way to Twitter. Whatever youâre looking for, itâs probably there. Here are a handful of the best photo-sharing mobile platforms out there for your posting pleasure.