Red Hill Mobile (rhm) is an aggregator and distributor of mobile entertainment content (games, wallpapers, animations, ring tones, etc.) and develops a number of technology platforms as well as WEB and WAP applications dedicated to mobile phones. Java games are developed by DigiFun and Coolrd, development companies based in China.

rhm is part of the KongZhong group of companies (along with DigiFun and Coolrd) which exist in the Asian markets since 1995.

Rhm is aimed at the non Chinese mobile markets.

KongZhong Corporation also owns two mobile entertainment portals, Tom.com and Any8.com.