External Flash App Syncs Up to 16 iPhones for Social Flash Photography

Sometimes, you need to get flashy with your photographs. When the need arises, you can use this External Flash app that lets you share your iPhone’s flash with up to 16 iPhones without buying an extra device. Sharing is caring right? The more friends you have around the brighter the photos – but don’t let that stop you. Grab a stranger and download this app for some experimental bonding photography.