They're pointing to macOS and saying it uses 5 times less RAM there, but is 230MB for a weather app really something to be proud off?
https://tinkerdifferent.com/threads/snazzy-weather-a-snazzie...
Has a bunch of visualizations and stuff. It might all be graphical assets?
Emphasis on the “ish”. It’s an iOS app ported to the Mac (Catalyst), just like Messages, Voice Memos, Clock, and basically every other consumer-focused stock app on the Mac these days.