Lightme - Lightmeter 4+

A clean, powerful lightmeter

Giuseppe Bertolini

    • 4.9 • 275 Ratings
    • Free
    • Offers In-App Purchases



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 2.1.3

• increased the limit on the number of presets to 20
• revisited the UI to make it a bit more intuitive/obvious and cute :)

Ratings and Reviews

4.9 out of 5
275 Ratings

275 Ratings

Kevin James Bond ,

Best light meter I’ve tested — FREE

Does the job and has tons of features. It’s free! The person that built the app seems like a very cool person. The app is so helpful and intuitive too. The developer really care about their users. It’s clear. And their personality even comes through. After installing you feel like you know them, download and use you’ll see what I mean. 10/10 great app. Free and powerful! I even voluntarily watch the ads frequently in the app to support the developer. Great app. Thank you!!

Developer Response ,

Hey! Thank you so much for the beautiful words :) they made my day! I hope you all feel at home when you open Lightme ✨ if you have any suggestions to make it even better just let me know 😊

__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 ☺️

Mdhrithsksufhkei ,

By FAR the best light meter app!

LightMe is the ONLY light meter app that I’ll use. All my cameras are antique, and mainly from the 19th and early 20th centuries— a time before aperture/shutter priority. One of the features that I like most about LightMe is that it displays the entire range of settings and fractions instead of forcing you to choose a priority like other apps do. I could go on for hours about why I love this app. Keep up the good work, and I can’t wait to see what else you’ll get up to!

Developer Response ,

That was the main issue I had with the other apps too and it is why I started working on this. The alternatives that showed more combinations felt a bit too old and were way less readable and immediate.
I'm glad you appreciate the design choices that were made and I hope you'll have a great time with your photography journey!

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

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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