Scatta
Get Scatta

Light planner for iPhone

Know your light before you leave.

Golden hour, blue hour, moonrise and the Milky Way core — for wherever you are, on one calm screen. Five seconds of planning. Zero second-guessing on location.

Coming soon to theApp StoreSee how it works
  • No account
  • Calculated on your iPhone
  • Any place on Earth

You have typed these into a search bar at least once. Scatta answers all of them at a glance.

Save time

Planning shouldn’t take longer than the shoot.

Most light apps hand you a map, a 3D globe and twenty calculators. Scatta hands you the answer: what light is happening now, and what is coming next.

  1. 1

    Open it.

    Scatta finds where you are and shows the light right now — Golden Hour, ends in 37 min — in big, unmissable type.

  2. 2

    Glance down.

    Everything coming up today and tomorrow, in order, grouped by date. Tonight’s plan and tomorrow’s alarm in a single scroll.

  3. 3

    Go shoot.

    Need more? Tap any event for the next 7 days, a plain-English explanation and the next date it happens — searched a full year ahead.

Pro planners

Brilliant for the once-a-year panorama you have storyboarded for months.

  • Maps, AR, ephemeris tables
  • A tutorial before your first answer
  • Settings for everything

Scatta

Built for the other 300 evenings a year — when you just need to know if it is worth grabbing the camera.

  • One screen, answers first
  • Useful in the first five seconds
  • Choose your events, then forget about settings

Twelve kinds of light

Show the moments you shoot. Hide the rest.

Wedding photographers live in golden hour. Cityscape shooters wait for blue hour. Astro folks want the dark. Turn on exactly what matters to you, and your dashboard stays quiet about everything else.

Sun & Light

  • A small sun rising over a calm alpine lake at dawn

    Sunrise

    Be set up before the first edge clears the horizon.

  • Honey-gold light grazing grasses and mountains

    Golden Hour

    Soft, low, warm light — start and end, to the minute.

  • A clear azure daytime sky over mountains and a lake

    Bright Daylight

    Know when the harsh light ends and the good part begins.

  • A sun sinking behind a ridge with orange and plum sky

    Sunset

    The exact moment the Sun meets the horizon.

  • Cobalt twilight with a thin pink horizon over a still lake

    Blue Hour

    Those cobalt minutes after sunset that cities glow in.

  • A last orange ember on the horizon under deep indigo sky

    Nightfall

    When the last ember fades and the first stars appear.

Moon

  • A warm ivory moon rising above mountains at dusk

    Moonrise

    Catch a low, warm Moon right as it clears the ridge.

  • A pale moon setting behind distant mountains

    Moonset

    Know when the Moon leaves — and the dark returns.

Night Sky

  • A deep starry night sky over a dark lake

    Astronomical Night

    The sky at its truly darkest — no twilight left.

  • A dense star field with no moon above mountains

    Moonless Window

    Dark sky and no Moon. The window faint stars need.

  • The Milky Way core rising over mountains and a lake

    Milky Way Core Window

    Dark, moonless, and the core above 10°. Go.

  • The Milky Way core high in a dark night sky

    Core Culmination

    The core at its highest point of the night.

Milky Way

Stop setting 2 a.m. alarms on a hunch.

The core needs three things at once: a truly dark sky, the core high enough to see, and no Moon washing it out. Scatta checks all three and gives you the window — or tells you plainly that there isn’t one.

Astronomical night
Core above 10°
Moon up
Core Window21:52 – 23:40
Illustrative night: the Core Window opens the moment the Moon sets and closes when the core sinks below 10°.

The next window, found for you

Nothing this week? Scatta searches twelve months ahead and shows the next date it happens — with how long it lasts.

Next · Sat 13 MarStarts in 4 days · lasts 1 h 48 min

Season at a glance

See which months have core opportunities where you are — so you can plan the trip, not just the night.

  1. J
  2. F
  3. M
  4. A
  5. M
  6. J
  7. J
  8. A
  9. S
  10. O
  11. N
  12. D

Honest when it’s a no

“Out of season.” “No moonless window this week.” Scatta tells you exactly why — so you can stay home with a clear conscience.

This weekNo moonless window — the Moon rules out each night.

Confidence

Every time comes with its reason.

Half the stress of planning is not knowing whether to trust the number. Every event in Scatta explains what it is, what it is good for, and exactly how it is calculated.

  • Times in the location’s own time zone. Planning Iceland from Lisbon just works.
  • Ongoing events show when they end — “Now · until 19:24” — never a stale start time.
  • Loading, failed and “none” never look alike. An empty week is a verified empty week.
  • Clear about the limits. Astronomical times only — no fake weather or “photo score”.

Peace of mind

No account. No server. Nothing to worry about.

Scatta does its maths on your iPhone. There is no Scatta server and nothing to sign up for.

  • No sign-up

    No email, no password, no profile. It works the first time you open it.

  • Calculated on your iPhone

    Location is used only while the app is open. Finding a place and its time zone may use Apple’s location services. Scatta remembers your last place — nothing more.

  • Truly native

    A real SwiftUI app that follows your iPhone’s text size, dark mode and Reduce Motion settings. It feels like part of iOS, because it is.

Questions

Straight answers.

Does Scatta predict the weather?

No — and it never pretends to. Scatta calculates astronomical times: where the Sun, Moon and Milky Way core will be. Clouds, terrain and light pollution are not included, so pair it with your favourite forecast. We would rather be honest than give you a made-up “photo score”.

Do I need an account?

No. There is no sign-up, no login and no Scatta server. Open the app and it works.

What happens with my location?

Scatta uses your location only while the app is open, and calculates every time on your iPhone. Finding a place and its time zone may use Apple’s location services. Scatta only remembers the last place you chose so it can open where you left off — there is no history of where you have been.

Can I plan for somewhere I am not right now?

Yes. Pick a city or drop a pin on the map. All times are shown in that location’s own time zone, so you can plan next week’s trip from your sofa without doing time-zone maths.

How accurate are the times?

Times are calculated for a standard, level horizon and shown to the minute. A mountain ridge or a tall building in front of you will change what you actually see — so arrive a little early. Every event explains its exact calculation conditions inside the app.

Will it remind me before golden hour?

Not yet. Scatta does not send notifications today — that is why you will see “Coming later” next to reminders in the app.

Is there an Android version?

Not at the moment. Scatta is iPhone only for now.

The light won’t wait.
Now you won’t have to guess.

Get Scatta and spend your evenings shooting, not calculating.

Coming soon to theApp Store