The Estimote iOS SDK by Estimote is the official Objective-C implementation by Estimote. The Estimote API provides support to Estimote's beacon sensor technology for micro-awareness and contextual awareness applications.
There are major advantages to today’s applications being built atop APIs. If you’re reading ProgrammableWeb, there’s a good chance you know all about integrating with other services. The major disadvantage of modern distributed architecture is pretty obvious—someone else’s service could go down and it’s outside of your control. You might not even know a service is down, which is why many top API providers are now making status pages available. These sites help communicate to developers when anything is amiss with the API.