Obtura · Light meter & camera coach

Make the photo you have in mind.

Obtura helps iPhone photographers plan, take and improve photos with visual guides. It also gives manual and film camera users light-meter readings and suggested settings.

Available now on the App Store.

iPhone · iOS 26 or later · English and French. The photography tools remain usable without Apple Intelligence. Compatibility

Obtura coaching screen with camera settings, preset technique advice and the Previsualise action.
Manual-camera coaching screen. Example scene and preset advice.

One scene. Two creative directions.

Freeze the motion

A fast shutter holds the spray in mid-air. The settings you can use depend on the light, your camera and your lens.

Generated illustration of a stream with spray frozen in mid-air.

Soften the water

A long exposure lets the water’s movement show. Obtura also explains the scene’s limits and the need to keep the camera steady.

Generated illustration of a stream with its movement smoothed.

These are generated illustrations of photographic intentions, not photographs taken with Obtura or captures of its previsualisation.

For your manual or film camera

Point

Your iPhone measures the light reflected by the scene. Obtura then calculates settings for your film speed, lens and camera’s shutter ladder.

EV 12.3
Say the shot

In plain words. “Freeze the tackle.” “Silky water.” “Keep the background soft.” No exposure jargon required — that half of the job is the app's.

See it first

The settings to dial in, and a simulated preview of the frame they'll give you. Change your mind before you spend the shot.

f/2.81/1000

On-device intelligence

The words are understood on your phone. The numbers are physics.

On a compatible iPhone with Apple Intelligence, Apple’s on-device model interprets English requests. French uses keyword parsing and a curated coaching library; preset coaching also keeps the app useful when the model is unavailable. Exposure settings are always calculated from the metered light and your camera’s real dials. Your sentence stays on the phone.


Reads your intent
Apple Foundation Models

English model coaching on supported devices; curated coaching when unavailable and in French. Works offline.

Solves the exposure
Deterministic, no model

The same light and the same lens always give the same answer.

Photo processing
On your iPhone

Your prompt and photographs are processed on your iPhone.

The instrument

Built like a light meter, not an app.

Dark from edge to edge, one-handed, tabular numerals. The raw EV stays on screen at all times, so you can check the app against your own judgement — and calibrate it to the body you trust.

  • Reflected metering: spot & average
  • Half, third or full-stop dials
  • Per-lens aperture ranges
  • Calibration offset per body

What it does

Your camera, not a camera

Your lens's real aperture range and click step. Your body's shutter ladder. If f/1.7 isn't on your lens, Obtura will never suggest it.

Works offline

Metering, intent and the solver all run on the device. No signal needed on the mountain, in the darkroom, or on the plane.

Film stocks & real dials

Set the film sensitivity and dial steps in your profile. For long exposures on film, consult the film maker’s reciprocity guidance separately: Obtura does not automatically apply that correction.

A journal of your shots

Log your shots with their settings, intent, a reference frame and location. Return to your notes when the scans come back.

Before you begin

Compatibility & languages
Requires iOS 26 or later. iPhone planning supports iPhone 16, 17 and 18 Pro and Pro Max. Guides, metering and presets work without Apple Intelligence. English model coaching requires a compatible iPhone and Apple Intelligence; French uses local keyword parsing and curated guidance.
Free access
Metering, previsualisation, the shot journal, calibration and camera profiles are free and unlimited. Coaching is limited to three shots per rolling seven days without Pro.
Data & privacy
Obtura does not upload your photography to Nesia. Originals are saved in the app; optional Photos exports may sync through your iCloud Photos settings. Apple and RevenueCat handle anonymous purchase information. Read the policy →

Privacy

Your photographs are not sent to Nesia.

No account. No analytics SDK in the app. No tracking, no advertising identifier. Obtura never sends Nesia your photographs, camera profiles, journal or the sentences you speak. Apple may restore that app data from your encrypted device backup. Apple takes the payment; an anonymous receipt is the only thing our purchase provider receives, without your name or email address.

Read the policy →

Free to meter. Pro to coach.

Metering is free and unlimited, forever — and so are previsualisation, the shot journal, calibration and your camera profiles. The one thing Pro changes is coaching: three coached shots per rolling seven days without it, unlimited with it, as a monthly or annual subscription or a one-time lifetime purchase. Prices are shown in the App Store.

Available on the App Store

Download on the App Store →