We are developing our social and gamification strategy for our next release and we want to track Analytics of each shared link with click through rates. What are the link shorteners we should be utilizing? We have two kinds of links one will be a sharing of a level attained by drinking water in our app, a second is an "activate your health" share which may be shared from your health dashboard with our demographic's top 3 social networks or emailed specifically to "at risk " for diabetes loved ones.
]Like most of the folks who've already replied to your question, I also use bit.ly with my own domain. If your intent is the shortest possible URLs and you don't care about using your own vanity domain, bit.ly also owns the "j.mp" domain, which can be interchanged anywhere you otherwise see "bit.ly".
However, if you're looking for more detailed metrics, you might also want to consider looking at some of the ad tracker tools internet marketers use, as they support features like advanced campaign management and duplicate detection.
hyperTracker (www.hyperTracker.com) provides some pretty detailed metrics, and they also provide guidance for using your own short domain(s) to masquerade URLs created with their service.