ePoint HotSpot is a firmware for wireless routers based on OpenWRT with some ePointy extensions and an ePoint-branded UI theme. It is distributed as a stand-alone flashable firmware-image, as a set of extension packages for OpenWRT, pre-installed on wireless routers, and in source code. It is aimed primarily at catering businesses, Internet cafés, and medium-sized communities (e.g. residential co-ops) wishing to share their Internet connection on a fair basis. The primary target hardware is WRT54GL by Linksys.
YFi Hotspot Manager is a modern AJAX Web front-end for FreeRADIUS 2.x. It has support for vouchers, permanent users, billing post paid, and pre-paid. Multiple languages are supported. Statistics can be generated. It works with CoovaChilli and Mikrotik. It runs on Ubuntu and CentOS. It has Google Maps integration. Third party systems can be integrated. There is thorough documentation.