I will do ios application improvement

About:

I have the 4-year experience to make mobile application in IOS(Objective-c and Swift). 

I am 
Expert in swift language.  
Expert in debug 

i will 
Migrate code to latest swift version.
Help to App Store submission on Rejected Application 
Debug and Resolve bugs From Application. 
 
I Will develop Application In free. if it's for education.