When you first open Moon Phase Pro, you're presented with an image of the current moon, big and beautiful. This highly realistic simulation accurately depicts both the phase and crescent angle as seen from your location. Near new moon, it even simulates earthshine on the dark side.
The app's main activity also shows key information about the moon right now: its phase percentage and name, the time until the nearest syzygies (new and full moons), and the moon rise and set times bracketing the present. Everything is there, at a glance.
This view of the moon is fully interactive. Drag your finger over its surface and the lighted area moves with your touch; stop dragging, and the data fields will update to indicate on what day the moon will look like this. Drag with two fingers and you'll spin the moon instead of the shadow, to get a look at the far side or the poles (available on Android 2.0 and above).
You can also "spin" the shadow with your phone's trackball/touchpad, or go directly to a date & time of interest by direct entry. You can even change your "observer" location to see what the moon looks like from the other side of the world.
On phones running Android 2.2 or higher, you also get the option of dynamic surface shadows, as shown in this screenshot. When activated, the shadow of every crater and mountain on the face of the Moon is drawn individually, and moves along with the phase. It's the ultimate in realism.
Finally, you can share the moon with your friends. Moon Phase Pro integrates with other apps on your device to send either a copy of the screen, basic moon data, or both (depending on the functionality supported by the sending app). Compatible apps include email, Facebook, Google+, Twitter, SMS, Picasa, Dropbox, Evernote, and more.
Tap the icon on the Action Bar to open Moon Phase Pro's Calendar activity and see the entire month's phases at once. The current day is highlighted, and the dates of major phases – full, new, and quarters – are outlined. For the big picture, tap any day and it will open full-screen in the main activity (above).
You can also easily skip to another month by using the buttons in the title bar, or by swiping your finger over the calendar itself.
For a complete set of details, the icon will open Moon Phase Pro's Data page, revealing full astronomical data about the moon. There's even information about the sun included! And it all updates automatically, in real time.
Like the rest of the app, the Data page can easily be switched to show another day, or a different observer location on the earth. Want to know when the moon will rise on New Year's Day in Fiji? No problem.
Home Screen Features
Moon Phase Pro's functionality isn't contained within the app itself. This screen shot shows three of its features which can be added directly to your device's home screen.
Twenty-four hours before each major phase, Moon Phase Pro will notify you that it's about to happen with an icon like the one visible here at the upper-left. Optionally, it can also play your phone's default notification sound so that you don't miss it.
What would an Android app be without widgets? Moon Phase Pro doesn't disappoint; it comes with four sizes of widget, from a tiny 1x1 – the same size as a single shortcut, shown in the upper-right of this screen – up to a giant 4x4 which fills an entire standard home screen pane.
All but the smallest widget also have the option to display moon data overlaid on the image, as seen on the 2x2 medium-size instance at the lower-right here. Hide or show the data overlay by tapping the button.
On Android 3.1 and higher, the widgets are also resizable, enabling you to dynamically fit them into your available home screen space.
Don't want to devote valuable home screen real estate to another widget? No problem – Moon Phase Pro comes with a live wallpaper, keeping an image of the current moon always in the background, in all its 3D glory.
if you have an older (or lower-spec) Android phone which ordinarily doesn't support live wallpapers, no worries. Moon Phase Pro has you covered with wallpaper functionality of its own. It looks just like the "true" live wallpaper pictured here, and updates just as automatically, without you needing to upgrade your phone.
If you have a larger-screen Android device, such as a tablet or Google TV, you'll get even more out of Moon Phase Pro. The moon imagery itself is bigger and better, of course, but the layout is also optimized to make the most of the big screen.