Phunware is a mobile app developer and a pioneer of Multiscreen as a Service (MaaS) — a mobile services platform that enables clients to interact with customers and manage their brand across multiple screens and devices.

Phunware has provided multiscreen infrastructure and application development for many well-known customers, including NASCAR, the WWE, ESPN, E! Entertainment, NBC Sports, Warner Brothers, and AT&T.

In March 2018, Phunware announced it was merging with Stellar Acquisition III. The merger was completed on December 26, 2018, and Phunware common stock now trades on the NASDAQ under the symbol "PHUN."