From Las Vegas Review Journal – For casinos to successfully reach their customers with players’ club rewards or special offers, it is more important these days to target them through mobile marketing instead of direct mail. Joingo LLC, a San Jose, Calif.-based technology company with offices in Las Vegas and Incline Village, has developed a mobile application menu allowing casinos to customize smartphone apps, as well as target and interact with loyalty club members. “We have a one-stop shop solution for a fragmented eco-system of apps,” said Alex Kanwetz, Joingo’s co-founder and vice president of business development. “It’s also not…