Pricing: Google App engine vs Amazon AWS elastic beanstalk

[user3692525 via StackOverflow]

I'm trying to create an assistant app and I need a cloud backend. I'm trying to choose between App engine and Amazon AWS elastic beanstalk.. I'm comfortable with the resources that both provide. I just need a cost effective choice. Which one should I go with?

I'll be using: 1. a nosql scalable db like app engine data store or AWS dynamo db (this will pRobably be big, since i store all the user's info here. - but, probably not going to be big for the first few weeks after I release my app. ) 2. A http server running my code 3. A push messing system to push messages to my clients' devices.

Please help me choose a cost effective solution between Amazon AWS beanstalk and Google app engine

Thanks!

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