Dear Sir,
I have this app before and I have still the source and I can make it work, I can send you proof for my qualification.
I am a Professional Programmer since 2008, I have many programs developed and successfully finished in my past employer, I am expert in IT Industry both Hardware and Software Programming, I will give you the quality and satisfaction of my work. I will give you 100% satisfaction, I really interested and ready to start.
Best Regards,
John