Rate limit


At https://dev.twitter.com/docs/api/1.1/get/friendships/lookup
GET friendships/lookup

For rate limit it says,

Requests per rate limit window 15/user

My app does not require user to authenticate. That means there is only one user (that is my app’s token). Does this rate limit means that my app can make call to this API only 15 times in 15 minutes? Or my understanding is incorrect?

If I need more numbers of calls, then is there any way? Do partnering with Twitter may permit more numbers of calls?