Hello sir/Madam, I Hope you are doing well !!!
I have read your requirement and understood that you are looking for an Expert Xamarin developer to modification (like logo, colors ) of existing applications.
I'm pleased to inform you we have 8+ years experienced developer team in Android, iPhone, Java, Mobile App Development, PHP and we already built 218 + projects on Android and iPhone.
Also, have enough knowledge & experience and also work on Xamarin for the cross-platform, So we will easily update your Android & iOS App & make it robust, user-friendly & best.
I have checked every feature of the reference website but can you please explain me that which extra features you want to add in this app Or which feature you want to remove in this reference website so I will understand and will also suggest some new features if needed & also provide you a perfect timeline & budget.
We have already developed several large & complex App projects so we can surely help you to develop an app & I will be happy to show you our works live via chat.
You will get the best price with the best quality of work and service from us than others because we like to keep a long-term relationship with our clients.
So I request you to chat with me at your best time as I am 24/ 7 available to my clients.
Awaiting your reply to move further.
Best Regards,
Zalak Virani