Everything — which way to look, the buildings in the way, tonight’s sky — is worked out for one spot on the ground.
The full seder, for standing outside without a siddur.
The full seder as printed in Nusach Ashkenaz, set down here for when you’re standing outside without a siddur. Wording, order and which passages are said differ between siddurim, nuschaot and communities — daven from your own siddur and follow your rav.
Whether the window is open, which night to go out, and how tonight runs.
Follows your phone unless you choose otherwise.
Location permission
Somewhere you say it often — home, the shul, your in-laws. Tap one to work everything out from there.
Phone GPS drifts by 10–30 m in cities, which is enough to change whether a building is in the way. On the Map tab you can tap anywhere to place yourself exactly.
Choose your observance for planning, including when traveling. By location uses one day in Israel and two elsewhere. Rosh Hashanah is always two days.
Days counted from the molad. Sof zman is half a mean lunation after the molad either way. Customs also avoid certain days — ask your rav.
The app only reminds you when going out is actually worth it: the night is inside your minhag window, you have not marked this month as said, and the sky where you are is forecast to cooperate — if tonight is hopeless and a clearer night is still in the window, the reminder moves to that night. Marking it said stops them until the next molad.
A web page that is closed cannot wake itself, so the reminder above only appears while the app is open. The calendar file fires either way.
The dial on the Map tab turns with your phone once motion access is allowed. Without it the dial stays north-up and still shows the moon’s bearing.
On the home screen the app opens full-screen, with no browser bar in the way, and the seder and your saved place are there without a signal.
The app is already on your home screen — you are reading this from it.
There is no sign-in and no server: your location, name, language and minhag are stored in this browser and never leave the device.
A mistake in the nusach, a building the map has wrong, a word that reads badly in your language — we would rather hear it.
Or write to info@kiddushlevana.app
Everything on the map comes from
OpenStreetMap: the tiles, the building footprints (via Overpass) and the place search (via
Nominatim) — free, no account, no key. Astronomy is computed on your device; weather is by
Open-Meteo.
Times are approximate. For halachic zmanim, always confirm with your luach or
rav.
Each is asked only for what it needs — coordinates for the lookups, a place name for the search. Nothing else about you is sent.