Lightme - Lightmeter is a clean, simple to use yet very powerful lightmeter.

It is optimised for an easy one-handed use, both for left-handed and right-handed users, with the main controls within your thumb's reach, without the fatiguing juggling of your precious smartphone.

A core distinguishing feature of Lightme - Lightmeter is that - differently from most of the other apps - it can show multiple combinations of valid settings for aperture and shutterspeed at the same time by working like a - stretched out - old needle and wheel lightmeter. This allows the user to quickly pick the desired settings without having to scroll on a tiny wheel picker.

The app is designed to be welcoming to people who are just starting out, with a simple one-button use. But it offers many useful and advanced features for the more experienced shooters/users:
Continuous metering (by pressing and holding or double tapping the measure button)
Spot metering with a variable zoom (for more precision) which also supports average metering, and a very intuitive implementation of the zone system
Automatic reciprocity failure compensation (for 25+ films, if you see exposure times in red, they are being compensated)
A dedicated pinhole mode with precise exposure times for user defined apertures (multiple apertures at a time), with the possibility of setting a timer (through a shortcut)
Incident light metering with calibration when using the front facing camera
And more ...
It also includes some other features that are enjoyable by any kind of user:
Black and white preview
The ability to use any of the cameras on your smartphone (swipe left/right on the preview)
Multiple presets for your different camera/film/lens setups
Framelines for previewing your shot, before setting up your tripod etc.
A searchable list of useful tips to make better use of the application's potential
A searchable list of more than 70 films to choose from with the possibility of selecting a few favourites
Dark mode support and a useful level of customisation
You can find even more info in the tips inside the app or you can have a look at full user manual by tapping on manual (in the settings)

The app is free in all its many functionalities, but it offers In-App-Purchases in order to support the project.

The only minor perk you can enable only via certain IAPs is the replacement of the Ad button with a label containing the name of your current preset, check under settings -> coffee for more info.

Don't panic though, even if there's an Ad button it doesn't mean I'm going to show you ads. In fact unless you decide to tap on that button I'm never going to show you any. But if you have a few minutes to spare, watching a few of them sure helps keeping this project alive :)

Try it, and, if you like it, share it with your friends and consider writing a (mini) review ;)

Have a nice day, and good light!

What’s New

Version 2.0.12

Refined support for cameras with multiple backs :)

Ratings and Reviews

4.9 out of 5
164 Ratings

164 Ratings

Mdhrithsksufhkei ,

Just amazing!

Whoa! And I mean it. I use very old cameras (1930s and before) for my usual work, and therefore I frequently need a light meter to assess the lighting situation in particularly difficult shots. I have tried just about any other app, but I EXTREMELY appreciate that this app lets you see all the combinations, like the old handheld meters, and not have to use a priority. The whole app is just so easy to use and is powerful as claimed. It also appears to be just as accurate as my handheld meters from the 1940s as well as more modern meters. Well done!

Developer Response ,

Hi! Thanks a lot for the review :)
I'm really happy you like it so much!
If you happen to also need a logbook press and hold on the camera preview ;)

Thanks again, have a really nice day!

__MatyD123 ,

Amazing, Accurate and Clean

This Lightme is by far my most used app on my iPhone. This light meter is very simple to use and if at any point you get confused about the apps functions there a built in tips function that let you know all there is to know and tricks you may not have known about the app.
This light meter is very accurate it’s stand right up with my other analog lightmeters.
The clean look on of this apps UI helps give off a very easy to use experience.
Love it!

Developer Response ,

Thank you for your great review :)) I'm really happy you like it so much ☺️

wilson199 ,

Tremendous light meter built by a passionate developer

The combination of a great user interface, accurate light metering, and no ads* (opt-in to support the developer) makes this easily the best app on the App Store.

Thank you so much for spending the time to build such a useful tool for film photographers! Love your donation-based/opt-in ad approach to support the development. With your active engagement to feedback on Reddit, this app feels like an open source project for the benefit for all of us.

Developer Response ,

Thank you a lot! I really appreciate that you got the spirit that leads me while working on this project 🙂
Hope you're having fun with it! Good light!


App Privacy

The developer, Giuseppe Bertolini, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Identifiers
  • Diagnostics

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


  • Family Sharing

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

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