Hi,
I am so happy to learn this good job.
My ability is just suitable for your job.
You can see it from my profile on Freelancer.
And you may check the URL for present and potential ability of my team.
I have a lot of experiences in development of web(codeigniter) and iPhone/iPad/Android application for GPS, ADS, Push Notification, Google Map, and so on.
And I have an excellent graphic designer.
Developing your project is no problem.
Especaialy,I well developing chart APP.
Of course, I know you could be in doubt about my real ability.
It would be important for me to prove my ability through real project.
I hope this project would be the first step in long term partnership with you.
So I am planning to accomplish this job with the best price for you.
Looking forward to your reply.
Best regards.