Mobile App Cost Calculator Tool

I thought in this competitive market that is very difficult to stand your business on top with old marketing strategy. So i suggest you to all grow your business using updated technology in this competition. and now a days that is very needed to have your own app if you are ruing online business or have eCommerce business. But what is the cost estimation to develop an app? I have launched and app development cost calculator tool, everyone can calculate app cost. just because all of you i am going to share the link where you can get cost estimation yourself.