Larry Taylor has released PDF+MIDI for macOS and updated AudioUnitInfo to v1.2.1.
PDF+MIDI is a PDF viewer with MIDI input for navigation. It's available for USD $0.99 on the Apple App Store.
AudioUnitInfo v1.2.1 adds architecture information (Intel, Apple M1, etc.) to the details displayed for installed audio units. It's available for free at www.larrymtaylor.com