Medicine ordering app

I need an android app using which people can place orders for their medicines. Something like Pharmeasy android app, or Netmeds, or Tata 1 mg. I need both the front end and back end to be developed. So, basically, end to end everything. The apps for reference are available on Google play store.

The actual app functionalities might vary by 10-20%. But, I need a rough estimate, to begin with. If the estimate is within my budget, I am ready to start the project soon or I can wait for some time as well.

Please provide me with the quotes, whatever it is.