Objective-C, the programming language superseded by Apple's Swift for iOS and macOS app development, has finally dropped off the top 20 most popular languages, according to the April 2021 edition ...

The TIOBE Index is an indicator of which programming languages are most popular within a given month. ... Ada was inspired by the language Pascal and intended for key embedded and real-time systems.

The two ‘dinosaur’ languages are competing for a top 10 spot in the Tiobe index of programming language popularity. They’re still critical in legacy systems, Tiobe says.