Greetings,
I have read Project Description & interested to work with you, as we have all the experience/expertise mention by you. I can surely answer all your questions but please drop me a message thru' PMB to start further discussion about your project, as we cannot write much on this initial message bard due to limitation of characters.
Our current bid is just a placeholder, as we still need detailed requirements of your App project.
Please check out our Freelancer profile https://www.freelancer.com/u/leadconcept.html, as we have delivered many successfully projects lately and let me know, if you want to see some of our recently developed projects.
Look forward to hearing from you.
Regards,
YK
LEADconcept