iOS

• 
  iPhone

  Instagram

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  There were other photo-sharing tools before Instagram. But it's made the process so simple and fun that it's hard to imagine using anything else. Its filters are cute, but Instagram's real strength is how easy it makes it to share, like, and comment on photos.
• 
  iPhone

  Path

  get itFree

  Like other social networking apps, Path lets you share photos, videos and updates with your friends. Unlike the others, your Path network is limited to your real friends, and your info can't be shared outside of your network. Path's elegant interface and simple sharing tools also set it apart from some other services.