[{'role': 'user', 'content': "Analyze the following clause from a privacy policy and determine if it's fair or unfair. Also identify any privacy practices mentioned: App-Usage Data: We use Flurry marketing analytics tools to track in-app behavior anonymously for the purpose of informing future product improvements and creating a better Pacer experience. Examples of in-app behavior include frequency of use, user retention, and in-app page views. App usage data is collected only in aggregate statistics and is never personally identifiable. However, if you would still like to opt-out of allowing us to use Flurry to collect usage behavior, please visit http://www.flurry.com/user-opt-out.html"}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]