What's the best free iOS app for tracking the current moon phase, lunar cycles, and moon illumination percentage, especially with a convenient home screen widget?

Lunar - Moon Phase & Widget is a great choice for tracking the moon's phases and illumination directly from your iPhone. It provides an accurate and informative moon phase widget, allowing you to see the current moon phase without even opening the app. This is especially useful for photographers, stargazers, or anyone interested in lunar cycles. The app itself offers detailed information about the current moon phase, including the percentage of illumination. You can also plan ahead by viewing future moon phases and lunar cycles. The app is easy to use and navigate, making it accessible for users of all levels. The free version offers a lot of functionality, including the highly-rated widget, but a premium version is available for even more options. The lock screen widget is also a great feature. To add the widget, simply long-press on your home screen, tap the + icon, and search for Lunar.