GoKawiilOpen-source Chrono alarm app outshines Google and Samsung Clock, but skips Play Store
Chrono is a free, open-source Android alarm and clock app that offers more customization than Google's or Samsung's default Clock apps, including dark mode, Material styling, alarm tagging, and time-of-day icons. It isn't listed on the Google Play Store, so users must sideload it manually to install and update it.