Thank you. Does your website involve file uploading? like for example images?

I'm looking at the pricing page of parse.com, it charges 5 cents for 1000 database accesses. I have accessed the database for 9000 times for the past 30days, I will need to pay 45 cents for my activity.

Assuming my activity can represents 3 typical active users, That means I need to pay 15 cents for one active user. Consider I have 500k active users, I need to pay $75000 each month.

Is parse.com too expensive?