Twitter tools such as this are valuable addition to the marketers toolkit, and making it free is always a bonus.Knowing who's got what installed makes a big difference, and can help developers devise better products.

Today we’re excited to announce that Answers is now available as a free mobile measurement tool for those who want to track promoted and organic app installs driven by Twitter.Twitter Offers Its App Install Analytics, Answers, For Free [blog.twitter.com]

Answers is a part of Fabric, Twitter’s mobile platform, and provides real-time, optimized app analytics. Advertisers can start measuring installs from Twitter by integrating Fabric into their iOS or Android app, and choosing the Crashlytics Kit. In addition to this free solution, we will continue to recommend our existing mobile measurement partners, which are ideal for advertisers who want to track conversions across multiple channels and measure lifetime value, while offering Answers for advertisers who simply want to track conversions attributed to Twitter for free.