Venmo – Fee-free payment app

After the weekend at Lake Tahoe, there were some expenses to be split.  Fortunately, some friends had started using Venmo – a service that allows you to pay friends with your phone (or online if you don’t have an iPhone, Android phone, or Blackberry).  You can use your bank account or credit card, much like PayPal.  However, best of all, there are no fees.  How can I say no to free?  Especially when the app is so easy to use.  Venmo’s mission is to make payments between friends easy and fun