Hi sir! I have looked into your project and feel that I will be an ideal candidate to do this job. Here are the answers to some common questions on how I work.
1) Which backend do I use and what is the pricing?
For all the apps I work on from scratch I have 2 general options on the backend solution.
a) Established Virtual Computer Based Backend : I use either Amazon AWS, Google Compute Engine or Microsoft Azure running an Ubuntu instance. This is ideal to cut down costs but is very complex and needs a professional for any changes (Like getting more compute power). This is significantly cheaper in the long run.
b) Basic Hosting : If you are willing to negotiate on the performance and stability of the app due to budget restraints this is the way to go. (NOTE: Support wont be provided when this hosting is down)
2) How long do I take to code the app?
This entirely depends upon the scope of the project and may vary from 3 days to 60 days! I work for 10-15 hours a week with rapid development cycle and outsource simple parts of the app to other trusted freelancers. I take 2 days off in a week.
3) Support after development of the app?
I provide free 1 month support for only bug fixes and maintenance requests. This free month start immediately after submission of the app and the project summary.
4) What is my design philosophy?
I believe in "beauty in simplicity" and only code using the design guidelines for the particular platform. For eg. In Android I use "Material Design by Google" and for iOS I follow "HIG". For web apps I prefer using Material Design but this may change depending on your requirements.
5) APIs?
I use the open source Parse Server running on an Amazon AWS Ubuntu instance to power all apps. This means that APIs will be readily available for most popular platforms like Java, Swift, ObjC, Python, PHP, JavaScript etc.
6) How can you contact me?
I am available mostly throughout the day and you can expect a reply immediately or within a time period of 2 hours. I will be available from 8:00am IST - 12:00am IST. You can contact me either on Skype: faizsameerahmed96, directly through freelancer or preferably Google Hangouts,