aluni questions and answers

aluni is a moon phase and solar clock app for iPhone, iPad, and Apple Watch. It shows the moon's current phase and illumination, sunrise, sunset, moonrise, and moonset, how much daylight is left, and the best time to see the moon tonight, in the app or right on your home screen.

A moon clock is a clock that tracks the moon rather than only counting hours: its phase, its position in the sky, and when it rises and sets. aluni is a moon clock for iPhone. Its dial shows where the moon and sun are right now, above or below a flat horizon line drawn across the face.

A day-night clock shows time the way the sky divides it: how much daylight is left, when the sun rises and sets, and how long tonight will be, not just equal numbered hours. aluni works as a day-night clock: daylight fills the dial above a flat horizon line, night fills the space below it, and the two resize through the seasons.

Yes. aluni is free to download and use, with 3 themes and all core sky data included at no cost. aluni+ is optional, as a yearly subscription or a one-time lifetime purchase. It unlocks 9 more themes, Lock Screen landscape scenes, and worldwide location search. There are no ads either way.

No. aluni calculates moon and sun positions on your device, using a location you choose or allow. There is no account and no tracking of anything that identifies you. When aluni checks the weather or your skyline, it shares only a rounded area, never your exact spot.

Yes. All celestial calculations (moon phase, sun and moon positions, rise and set times) run on your device, so the clock works without an internet connection. Two extras use a connection when one is available: the cloud forecast, and your real skyline the first time you view a new place.

Yes. aluni puts a live clock on your iPhone home screen, Lock Screen, and StandBy, in whichever widget style you like. On iOS 27, one widget can fill a whole home screen page with a sky almanac. On Apple Watch, the same clock works as a complication.

A normal clock divides the day into 12 or 24 equal segments and says nothing about the sky. aluni starts from the horizon instead: a flat line splits the dial into sky above and ground below, the sun and moon hands cross it in real time, and the hours compress or stretch to match the true length of day and night where you are.

Because the dial follows the real length of day and night at your location. Long summer days stretch the daylight hours across more of the face and compress the night; in winter the reverse happens. An ordinary clock gives every hour the same size. aluni sizes them by the sky.

The moon takes about 24 hours and 50 minutes to return to the same position in the sky, compared to 24 hours for the sun. That extra 50 minutes is why moonrise shifts later each night, and aluni's clock is built to show that shift clearly.

Yes. Moon Details names the best time to look up tonight, which way to face, and how high the moon will be. It accounts for the real hills around you and adds a plain-language cloud forecast. Tap the bell and a Live Activity counts down on your Lock Screen. If you still can't spot it, Moon Finder turns your phone into a compass that guides you to the moon.

Yes. Pick the ones you want: a daily moon report, a nudge 55 minutes before the moon rises or sets, alerts for full moons, new moons, and crescents, and a reminder before tonight's best viewing window.

aluni calculates moon phase, position, and sun events on your device for your exact location. Viewing times also account for real terrain, so a ridge that hides the moon is part of the answer, and a cloud forecast from Apple Weather tells you what the sky will actually show.

Yes. aluni computes the sky for your actual location, so the moon's phase, orientation, and path across the dial match what you see outside, including in the Southern Hemisphere, where the moon appears flipped compared with Northern Hemisphere views.

Most moon apps show the phase as a static icon or a table of times. aluni is a working clock: the sun and moon move across a dial in real time, day and night resize with the seasons, and viewing times follow your real horizon. No ads, no account, and it works offline.

aluni runs on iPhone with iOS 17 or later and on iPad with iPadOS 17 or later. It is also made for iPhone Duo: the app fits both the outer display and the inner display, and keeps your place as you open and close it. The Apple Watch app and complications need watchOS 10 or later.

aluni's app and this website are available in 23 languages and locales, including English, Spanish, French, German, Japanese, Chinese, and Arabic.