
There’s quite a few out now. I will list most of them that are used today and that I’ve used before.
First is whmcs everyone these days know this billing system or atleast use it.
Then there’s client exec then blista. Then comes hostbillapp. These that I’ve listed are all paid option as for free there is php coin or the chance if you making your own.
This entry passed through the Full-Text RSS service — if this is your content and you’re reading it on someone else’s site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers.