Is there any developer or tester keeping track on time taken for testing in hours


Hi everyone
I’m a Ph.D research scholar n my area is on testing of mobile apps… I am creating a dataset for mobile apps having effort spent on development and testing of app. If anyone could help me with this work I shall be highly obliged. Any freelancers or mobile app companies into development and testing. I am even willing to pay for the job. Thanks in advance and looking forward for your help.