Hello. Not each web hosting service provider will be able to provide that for you. I assume you need to do your search for this specific kind of hosting and then you will be able to find. But not among shared web hosting services
I am still setting up my site.. and VPS will require minm 512 ram.. that wi;l be expensive..
Then perhaps you should setup a local box to test and develop your application and when it's ready I'd hope that your business plan allows a spare $10/month for a VPS with 512mb of memory from one of the many budget providers around.
After all one of the most important aspects of your application if it's web based will be the hosting! You get what you pay for etc.