Dear Sir,
I have read Project Description & my first question for you is that you want Web App or iPhone/Android App?
Secondly, can you please provide me more detailed requirements or at least high level features to estimate it precisely, because based on the project description, it is hard for me to give you any estimate.
Our current bid is just a placeholder to submit the proposal, as we still need to finalize the scope of work.
Look forward to hearing from you.
Regards,
YK
LEADconcept