Cine Meter 4+

Adam Wilt

    • 3.3 • 3 Ratings
    • $0.99

iPhone Screenshots


SEE the light: Cine Meter gives you an RGB waveform monitor and a false-color picture in addition to a cine-style, shutter-priority reflected light meter, using the camera in your iPhone / iPod / iPad.

• The light meter shows you your stop as a decimal value (such as f/5.0, good for cameras with EVF iris readouts) or as a full stop and fraction (like f/4.0 ⅔, good for cine lenses with marked iris rings). You can calibrate Cine Meter to match other meters to a tenth of a stop.

• The waveform monitor shows you how light levels vary across a scene. You'll see how smooth and even the lighting is on a greenscreen or background, and find subtle hotspots and shadows at a glance. The waveform’s RGB mode shows you color imbalances in the image and gives you a handy way to check color purity and separation for chroma-keying.

• The false-color mode lets you define allowable contrast ranges, and see instantly which shadows are underexposed and what highlights risk clipping.


Cine Meter is NOT a color-temperature meter; it can't measure white balance.

It's NOT a flash meter; it can't measure strobes.

It's designed solely for cine/video work and isn't optimized for still photography; for example, it's shutter-priority only.

Cine Meter gives you *absolute* light meter readings, but *relative* picture and waveform monitor levels:

1) Cine Meter’s picture and waveform monitor do not use the *exact* exposure shown by the light meter (they are close to the meter reading, but can differ from it slightly). The picture and waveform monitor show you *relative* levels within a scene, not *absolute* levels based on the meter reading.

2) You can't *preset* exposure or color temperature in Cine Meter. To compare exposures and colors, you lock Cine Meter’s auto-exposure and auto-white-balance settings while looking at a known good reference, such as a gray card. The picture and waveform monitor then show you levels and colors relative to your locked settings.

See for details.

(Why am I telling you this? I would rather have you understand these limitations up-front and not buy Cine Meter, than have you buy Cine Meter unaware of them and be disappointed.)

What’s New

Version 1.10

This app has been updated by Apple to display the Apple Watch app icon.

• Improved error handling when no mail account is found for sending feedback.

Ratings and Reviews

3.3 out of 5
3 Ratings

3 Ratings

djreconmb ,

Needs aperture control.

The app works fine for me as a photographer, but because some of the lenses I use are antique lenses and don't offer a great number of aperture values, I'd like to be able to set my aperture value on the app so that the calculated value would be the shutter speed, but please keep all values changeable and not just select which value (shutter/aperture) can/can't be set

ScottyJNC ,

Stopped working.

This was a great, useful app that I actually found accurate and comprehensive enough for serious work. Loved it and used it often. But now when I try to open it on my iPhone XR, it crashes immediately. No error message, no explanation. Just shuts down. Disappointed to say the least!

Developer Response ,

A fresh download is working fine here on an XS Max running iOS 14.3. Did you try any of the troubleshooting steps at, like resetting your phone, or deleting and reinstalling the app? Did you try contacting the developer for help? There is nothing in the code that should make it just stop working, so it's likely something went wrong with your installed copy — even if it was working before. Things DO fail of their own accord once in a while, and if resetting your phone doesn't fix it, reinstalling the app should.

Avatar Shinryu ,

Deserve 5* but....

Why create a new app and not upgrade the one I’ve PAID!!!
Update: the developer returned a fair answer. Thanks. The new app should deserve 5*
Not this one.

Developer Response ,

Because the new app required substantial time and money to create, and while you might want to get it for free, I couldn't afford to do that. I could have made the new features an in-app paid upgrade, but that adds complication and annoys users. Instead, I made a Cine Meter Upgrade Bundle, so that you can get Cine Meter II for $4 off if you want the new stuff. And if the new stuff is too expensive for you, Cine Meter continues to work as it always has, and there are no in-app sales pitches to annoy you while you use it.

App Privacy

The developer, Adam Wilt, indicated that the app’s privacy practices may include handling of data as described below.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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