Hi There,
I checked that you are looking for update your existing website. I can provide you a perfect solution for your requirement.
We have 5+ year experience with Web design/development with many technlogies and mobile app development (iPhone,android).
Also I have good knowledge of GPS, Payment Integration, Social media like facebook, twitter integration, Push notification, taking picture from camera or gallery etc. We are expertise with API / Web service development, website development, web designing and native apps building with high quality of UX/UI custom design. I will give update you on daily basis through skype or mail.
Please let me know if you have any questions, I would love to assist you.
Looking forward to hearing from you soon.
Regards,
Vinod