I am currently developing a SaaS product and am at an impasse in terms of how to charge.
The subscription is only going to be $5 per month. Although I'm in the UK, my main market is going to be the US, so it's easier to just charge in dollars.
I have looked at Google Checkout and Paypal, but their charges for small amounts are huge, and would be a massive percentage of my revenue. I know there are companies like chargify and recurly, but they work on top of merchant accounts, so there'd be even less money at the end.
I also need to ensure that the monthly billing is simple, and can be prorated to simplify the billing cycle.
Offering staggered payment options could alleviate this, but this would mean I'd have to alter the monthly payment to ensure I'm bringing in the same money as forecasted.
Has anyone else come across the same problem, and is so, how did you solve it?
Is it really this difficult to create profitable web app subscription services?