iPhone Screenshots


Lightmate is a simple light meter app for photographers. The user interface is designed with clarity in mind.


• Aperture and shutter priority modes
• Multiple EV scales (iOS Settings > Lightmate)
• Back and front camera support


1. Choose the ISO, Aperture (or Shutter) values according to your camera settings.
2. The priority changes automatically to Aperture (or Shutter) mode when you change the Aperture (or Shutter) value.
3. Tap anywhere on the camera's preview screen to measure and update the exposure values.

You can switch the priority mode by just tapping on the Shutter or Aperture values.


You can change the default EV scale individually for Aperture, Shutter Speed or ISO values.

1. Go to the general "iOS Settings"
2. Scroll down until you find "Lightmate"
3. Change to a different EV scale (full stops, 1/2 stops or 1/3 stops)

What’s New

Version 1.0.12

• Improve "Pinhole Exposure" experimental feature. This feature helps determining the correct exposure time for a pinhole camera. It can be enabled in the app settings (iOS Settings > Lightmate).

Did you find any issues, need help or have ideas for new features? Please contact me at luis@laug.ga.

Ratings and Reviews

4.1 out of 5
39 Ratings

39 Ratings

Mint Teax ,

Simple and accurate

I am new to film photography, so I was very concerned about making sure my photos were properly exposed. I found this app, and tested it out by taking exposure readings with both the app ans my digital camera. This app is completely accurate to a true exposure reading with an actual light meter, so if you’d rather not carry one of those around all the time, this is it.

bobb67 ,

Love it!

My film camera's light meter suddenly broke so I looked for substitute options in App Store. Most other similar apps are ugly and slow, and I'm really glad that I searched patiently and found Lightmate. The user interface is just gorgeous! No disturbing elements, simply tap to measure. Plus, it's easy to tweak switch full/half/one thirds stop for aperture and shutter speed in Settings app.

Thomas McCaul ,

Great App

I just discovered this light meter app today and I have tested it by inputting the suggested numbers into my Canon 5D MKiii and it provides an accurate exposure every single time. I tested in indoors, outdoors, and even now in 9:30pm night light in my room. I used it today for some film shots and only time will tell but I have confidence in it.

App Privacy

The developer, Luis Laugga, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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