NeoLoad can integrate with functional testing tools to get browser-based measurements.

NeoLoad provides a plug-and-play integration with Perfecto Mobile.

For other tools, the idea is to launch the execution of script based functional test cases that are modified to collect the performance metrics and to push them to NeoLoad through the Data Exchange API

See how to use Selenium scripts: http://www.neotys.com/documents/doc/neoload/latest/en/htm... or any Java-based script: http://www.neotys.com/documents/doc/neoload/latest/en/htm...