LMS (sell courses)

Hi,

The only solution for LMS I've come across is ThemeHouse, who are abandoning Xenforo and does not make any sense to invest in them.
Anyone know any other?

I'm open for custom development for an LMS addon.

Honestly, I'm surprised this hasn't happened yet. The on-line learning industry is huge and keeps growing.
Xenforo could be an excellent platform for a fully-featured LMS addon.

Thanks
A.