HTML5
Software / App
HyperText Markup Language version 5, used for the structure of the simulator's web interface.
Mentioned in 2 videos
Videos Mentioning HTML5

Kevin Systrom at Startup School SV 2014
Y Combinator
A web technology that Systrom initially used for Bourbon because he didn't know how to build iPhone apps, allowing for quick iteration.

How Shazam Works (Probably!) - Computerphile
Computerphile
HyperText Markup Language version 5, used for the structure of the simulator's web interface.