Dear Sir,
I have read your Project Description but you want both iOS & Android App, so that's why our estimate is higher than your budget of US $1,500. Please let me know, if you would be flexible in your budget?
Just so you know, our current bid is just a ballpark estimate to give you an idea but we can revisit after having a one to one discussion.
Look forward to hearing from you.
Regards,
YK
LEADconcept