Buribooks is good and they have a free 30 day trial. I don't think the pricing changes, sign up on the website and pay there. You could probably just keep getting a free trial with a new email address. P199 for 1 month, P1199 for 1 year. Pretty cheap in USD.
@AMBoy
I could be mistaken, I thought the pricing changed if your google account was PH or US based.