First of all, look at [**Relic Mobile**][1] project. There's free version.


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Also you can try:

 - [Soasta's solution][2]
 - [Neotys' solution][3]


  [1]: http://newrelic.com/mobile-monitoring
  [2]: http://www.soasta.com/testing-solutions/mobile-performance-testing/
  [3]: http://www.neotys.com/introduction/mobile-load-testing.html