Know the light.
Plan the shot.

Senja shows where the sun will be, how the light will look and where the shadows fall. For any place, on Android.

Golden hour

5:31 PM

GMT+07:00 Altitude 2.9°

Today · Sunset at 5:45 PM

5:31 PM
  • Golden-hour portraits
  • Sunrise landscapes
  • Location scouting
  • When the balcony gets sun
  • Choosing a flat
  • Where the vegetable bed goes
  • A shaded picnic
  • Sunset from the right beach
  • Long shadows on the street
  • Weddings outdoors

Real captures from the app. Most show Senja Golden, without ads.

Drag the day. Watch the shadow swing.

The Instrument looks down on an object and the shadow it casts: a pyramid, or a monolith, cube, cylinder or sphere. Scrub through the hours, or step from sunrise to golden hour to sunset.

Free

Senja's Instrument in Jakarta at 5:31 PM: a pyramid casting a long shadow east during golden hour.

See this evening's sky this afternoon.

Sky raises the camera to face the sun, coloured by its real altitude through golden and blue hour. Switch to AR and today's path is drawn over your camera, with sunrise and sunset on the horizon. Trace the rooftops with a finger and Senja shows when direct sun really reaches you.

Free

Senja's Sky view: the sun low over the horizon at golden hour, 5:31 PM in Jakarta.

Know which side of the street gets the sun.

3D buildings from OpenStreetMap cast their shadows for the time you choose, with sunrise, sunset and the sun's direction drawn across the map. Press and hold anywhere to make it your place.

Needs a connection. Trees and terrain cast no shadow.

Free, with one ad

Senja's Map at Bryant Park, New York: 3D buildings and their shadows at 8:24 AM.

Midsummer and midwinter, side by side.

One tap draws the sun's path on the longest day, the equinoxes and the shortest day next to today's, in every view and on the map. Pick any date from 1970 to 2100.

Senja Golden

Senja's Sky in London with the equinox and shortest-day sun paths drawn across it.

Will tonight's sunset be worth the trip?

Senja reads the low, middle and high cloud around the next sunrise and sunset and rates it from vivid to grey. Broken high cloud over a clear horizon scores best.

A likelihood from MET Norway's forecast, not a promise.

Senja Golden

Senja's place details for Jakarta: azimuth, shadow ratio, and a light forecast rating the coming sunrises and sunsets.

34,173 cities. No signal needed.

Cities, plus well-known landmarks, are searchable offline, accents and all. Paste coordinates, save favourites, or use where you are.

Free

Senja's search sheet with favourite places Jakarta, London and Paris, and a recent search for Bryant Park.

Be there before the light.

A nudge before morning or evening golden hour, sunrise, solar noon, sunset or blue hour, five to thirty minutes ahead. With Golden, sunrise and sunset reminders add how the sky is likely to look.

Free

Senja's reminder settings with morning and evening golden hour switched on, 15 minutes ahead.

The sun, on your home screen.

Three widgets, each small, wide or large, each with its own place. Clock times, not countdowns.

Sun arc widget, small: today's arc for Jakarta with the sun climbing, and sunset at 5:45 PM. Sun arc widget, wide: Jakarta, 12 hours 16 minutes of daylight, and sunset at 5:45 PM. Sun arc widget, large: Jakarta, golden hour begins at 5:17 PM; sunrise 5:28 AM, sunset 5:45 PM, 12 hours 16 minutes of daylight.
Sun arc Free
Light phases widget, small: daylight until 5:17 PM, with arrows to step through the day's phases. Light phases widget, wide: daylight now, until 5:17 PM, with arrows to step through the day's phases. Light phases widget, large: Jakarta, daylight now until 5:17 PM, the sun at 101 degrees east.
Light phases Senja Golden
Day at a glance widget, small: Jakarta, sunrise 5:28 AM, sunset 5:45 PM, and a bar of the day's light. Day at a glance widget, wide: Jakarta, sunrise 5:28 AM and sunset 5:45 PM, then solar noon 11:36 AM, golden hour 5:17 PM and sunset. Day at a glance widget, large: Jakarta as of 9:10 AM, sunrise 5:28 AM, sunset 5:45 PM, the day's light bar, then solar noon, golden hour and sunset times.
Day at a glance Senja Golden

What it does well, and where it stops.

Light planning only works if you know what the numbers leave out.

Topic Does well Where it stops

Offline

Every sun time, search across 34,173 cities and their landmarks, the 3D views and the AR path all work with no signal.

The Map and the light forecast need a connection.

Building shadows

OpenStreetMap buildings, in 3D, cast shadows computed on your phone for the minute you pick.

Trees and hills cast none, and a building with no mapped height stands in at 8 m.

The sky

Coloured by the sun's real altitude: golden hour from −4° to +6°, blue hour from −6° to −4°.

It shows the light, not the weather. Clouds are the forecast's job.

Light forecast

Scores the next sunrise and sunset from cloud at three heights, fog and rain, worldwide.

A likelihood, not a promise. Beyond about 60 hours it is a rough guide.

Horizon

Trace your skyline in AR and the path fades where rooftops and trees hide the sun.

Listed times assume a clear, flat horizon. Hills and towers will move them.

Shadows in AR

Stand the shadow object life-size on your floor and watch its shadow cross it through the day.

Needs ARCore on the phone, and assumes the ground is flat.

Devices

Phones, tablets and foldables from Android 8.0, in portrait, landscape and large text.

Android only. There is no iPhone version.

Free for today.
Golden for every day.

Senja Golden is one payment, no subscription, bought inside the app. It removes the ad for good and opens every date from 1970 to 2100.

Feature Free Senja Golden
Instrument, Sky and the sun's path in AR Today Any date, 1970 to 2100
Offline places, search and saved favourites
Golden hour, sunrise and sunset reminders
Shadow Map With one ad No ad
Seasons: solstice and equinox paths
Light forecast
Exact sun angles and every twilight
Shadow object life-size in AR
Home screen widgets Sun arc All three
Ads One, never personalised, on the Map, Search and Settings None

No account. No analytics. The sun is worked out on your phone.

Forecast
Only the place's coordinates, rounded to about a kilometre, while the forecast is on screen. Senja's forecast service sees your internet address only to limit requests, and keeps no record of it.
Map
Tiles from OpenFreeMap while the Map is open. They show the area you view, nothing else.
Camera
AR shows the picture on screen only. It is never recorded or sent.
Ads
Free shows one AdMob ad, never personalised, after Google's consent form where the law asks for it.
Read the privacy policy