Apps · iOS · Free
Night Cam: Stars & Aurora app icon
Free iOS app100% on-deviceWorks offline

A night-sky camera that also tells you whether tonight is worth going out

Night Cam has camera presets for the night: Moon, Stars (a 16-second stacked exposure), Aurora, star Trails and City for photos, and Night video, Aurora Live and Time-lapse for video. The Tonight tab is a free forecast for your location: aurora chance from NOAA's Kp forecast and OVATION model, cloud cover and the moon phase. Optional alerts send at most one notification a night when the aurora is likely. No account, no subscription.

Coming soon to the App StoreGoogle Play: Android version in progress
Price
Free download, 3 free captures. Pro $4.99 once, or Night Pass $0.99 for 48 hours
Forecast
Aurora chance, cloud cover, moon phase. Always free
Presets
Moon, Stars, Aurora, Trails, City, Night video, Aurora Live, Time-lapse
Requires
iPhone, iOS 18 or later

How to photograph stars with an iPhone using Night Cam

The phone has to stay still for the whole exposure. That is most of the trick.

  1. Check TonightOpen the Tonight tab to see cloud cover, moon phase and the aurora chance for where you are. Clear skies and a thin moon are best for stars.
  2. Steady the phoneUse a tripod, or prop the phone against something solid. Hand-held star shots will blur.
  3. Pick a presetChoose Stars for a sharp sky, Trails for star trails, Moon for the Moon, or Aurora when it is out.
  4. Tap and let goA 3-second countdown starts so your tap does not shake the phone. Stay still until the capture finishes; the photo is saved to Photos.

What it does

🌙Moon, Stars, City

Photo presets tuned for each. Stars stacks 16 seconds of frames into one cleaner image.

🌌Aurora and Aurora Live

An aurora photo preset, and real-time aurora video when the lights are moving.

✨Trails and Time-lapse

Star trails from a long session, or a time-lapse of the sky moving.

🔭Tonight forecast

Aurora chance for your location (NOAA SWPC Kp forecast and OVATION model), cloud cover from Open-Meteo, and moon phase. Free.

🔔Aurora alerts

Optional. At most one notification a night, only when the chance is worth it.

🔴Red night mode

Turns the screen red so your eyes stay adjusted to the dark.

Questions this app answers

Will I see the northern lights tonight?

It depends on geomagnetic activity, where you are, and whether it is cloudy. The Tonight tab combines NOAA's aurora forecast with cloud cover for your location into one chance figure, so you can decide before going out.

How do I photograph stars with my iPhone?

Keep the phone completely still on a tripod or a solid surface, get away from street lights, and use a long exposure. Night Cam's Stars preset takes a 16-second stacked exposure after a 3-second countdown.

Can an iPhone film the aurora?

Yes, when it is bright enough. The Aurora Live preset records real-time video of the aurora; for faint displays a still photo with the Aurora preset will show more than your eyes see.

Night Cam vs the built-in Camera and separate forecast apps

The built-in Camera has Night mode, but no presets for stars or trails and no forecast. Aurora forecast apps usually do not take photos, and many are subscriptions.

Night CamiPhone CameraForecast-only apps
Star, Moon, Trails and Aurora presets✓✗✗
Aurora chance for your location✓✗✓
Cloud cover and moon phase✓✗Some
PriceFree forecast, $4.99 once for ProFreeOften a subscription

Frequently asked questions

Is it free?

The download and the Tonight forecast are free. You get 3 free captures with Moon, Stars, City or Night video. After that, Pro is a one-time $4.99 for everything, or Night Pass is $0.99 for everything for 48 hours. Night Pass does not renew. There are no subscriptions.

Where does the aurora forecast come from?

From NOAA's Space Weather Prediction Center: the Kp forecast and the OVATION aurora model. Cloud cover comes from Open-Meteo.

Does it need my location?

No. Location makes the forecast match where you are, but you can decline it and still use the camera.

Is there an Android version?

Not yet. It is iPhone-only for now.

More on-device apps for chat exports and voice notes

Aurora and cloud forecasts are estimates and can change quickly. Night Cam uses public data from NOAA SWPC and Open-Meteo and is not affiliated with either.