A weekly roundup of L.A. tech company and product launches.

Crexi: Venice’s Crexi has launched its real estate exchange platform. The platform allows brokers and real estate owners to find properties, manage acquisitions, review investment details and submit offers.

Legend 3D: Special effects company Legend 3D of Hollywood is launching a virtual reality division. The new division will create production tools to help studios, documentary filmmakers, retailers and brands create virtual reality content.

TigerText: Secure messaging company Tiger Text of Santa Monica has added speech recognition capabilities to its app. Developers partnered with TigerText will be able to build apps with tools that accurately transcribe detailed speech.

OpenX: Online advertising marketplace OpenX has launched a new bidding product for mobile apps. The OpenX Bidder for Apps product will allow brands and agencies to purchase advertising space on mobile apps in real-time.

Ixia: Calabasas network and cyber-security company Ixia has launched the Vision One device. The hardware device watches the flow of traffic across a network and looks for malicious activity.

Technology reporter Garrett Reim can be reached at [email protected]. Follow him on Twitter @garrettreim for the latest in L.A. tech news.