Windows alt-tab on macOS (i.e. switch between windows, not apps)
Swift for TensorFlow Deep Learning Library
Vocable AAC for iOS - Empowering people to communicate with care takers and loved ones.
Awesome list of open source applications for macOS.
Firefox's Lockwise app for iOS
The Plug&Play Consent Management Tool for iOS
Coronavirus tracker app for iOS & macOS with maps & charts
Emcee is a tool that runs iOS tests in parallel using multiple simulators across many Macs