Wikipedia
PowerBuilder is an integrated development environment owned by SAP. On July 5, 2016, SAP and Appeon entered into an agreement whereby Appeon would be responsible for developing, selling, and supporting PowerBuilder.
PowerBuilder has been in use since 1991, peaking around 1998 with around 100,000 users. While PowerBuilder's market share has declined over the years, many applications created with it are still in use today.
Over the years, PowerBuilder has been updated with new standards. In 2010, a major upgrade of PowerBuilder was released to provide support for the Microsoft .NET Framework. In 2014, support was added for OData, dockable windows, and 64-bit native applications.
Sybase sold another programming tool called PocketBuilder. It was based on PowerBuilder and used for creating applications that run on mobile devices such as cell phones or PDAs. This product, however, has been discontinued — Sybase announced end of life in 2011 with support ending in 2012.