Ask HN: What do you use for SaaS subscription billing?

[hajrice]

Hi. I'm launching a SaaS soon and would like to know what you use for subscription billing.

I've encountered several subscription billing apps like cheddergetter, recurly, spreadly and chargify.

I haven't had any experience with this field and would like to know your opinion.

Thanks.

[jlarkin]

Another SaaS based Subscription billing provider: Aria Systems - startups through enterprise. http://www.AriaSystems.com