Some time ago my company built a mobile app for a client. The app is basically representing another big company in a very important niche. This app is published on iTunes App Store under our ownership. I got a message today from the Manager of the company which is represented by this app asking me to remove this app from iTunes as they have their own app now. I am looking for an advice of what should I do now. What should I tell him? Looking forward to hear all your advices, maybe some of you had any similar experince. Thanks in advance.