illumeter

illumeter

Light Meter In Your Pocket

11 ratings
6 reviews
Free

Details

  • Released
  • Updated
  • December 11, 2023
  • June 9, 2025

Features

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About

This app functions as a portable light meter, allowing users to measure exposure values like aperture, shutter speed, and ISO. It offers features for logging shots with location and settings, and provides customization options for a personalized user experience.

Exposure measurement (Aperture, Shutter Speed, ISO)
Tap-to-focus exposure lock
Exposure compensation
Frame logging with location and settings
List and map view of logged frames
Customizable settings and appearance
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What's New in illumeter

1.5.0

June 9, 2025

New Features • Exposure Compensation has been added. You can now adjust exposure values from -2.0 to 2.0. • Exposure Compensation Feedback settings are now available. Choose your preferred feedback for the exposure compensation dial. • Screen Rotation has been added. The UI will now rotate with your device's orientation. • Screen Rotation settings are now available. You can toggle screen rotation on or off. • Full Coverage Preview Mode has been added. This mode displays the entire frame without cropping in the preview. • Preview Mode settings are now available. Choose between Full Screen (default) and Full Coverage. Improvements • Exposure Measurement logic has been improved. Enjoy more accurate and a wider range of exposure measurements. • Exposure Measurement responsiveness has been enhanced. Exposure calculations are now reflected more instantly. • Animations for exposure-related UI have been improved. • Layout for the Full Screen(default) Preview Mode has been refined. Bug Fixes • Fixed an issue where decimal input was not possible in certain languages/regions.

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User reviews

No front facing camera

It would be nice to have the front piece and camera option as well…

Good tool

Does exactly what it says it will do. Very helpful!

Nice meter and simple to use

Been enjoying using the meter it’s been my go to on my phone.

Nice meter

Nice but can’t delete the saved previews.

Response from developer

Thanks for using illumeter! The delete/export logged photo feature is currently under development, aiming to be included in the next version, 1.3.0. The update will be available soon, so stay tuned. Thank you!

Formidable !!!

Fonctionne super bien, j’adore!

Developer apps

FAQ

What devices does illumeter support?

illumeter is currently supported on iPhone devices. It was last updated on June 9, 2025, with version 1.5.0.

How accurate is illumeter's light metering?

illumeter allows users to measure aperture, shutter speed, and ISO, with automatic adjustments based on changes in the other two settings. It also includes an exposure compensation feature for challenging lighting.

Can I log my photos with illumeter?

Yes, illumeter allows you to log your frames by composing your shot and pressing the shutter button. Each log records location, date and time, EV value, and settings, which can be reviewed in a list or on a map.

Is illumeter free to use?

Yes, illumeter is available for free. There are no in-app purchases or subscriptions required to use its core features.

Does illumeter have ads?

No, illumeter does not contain advertisements. It is a completely ad-free application.

What is the age rating for illumeter?

illumeter has an age rating of 4+, making it suitable for a wide range of users.

How often is illumeter updated?

The app was last updated on June 9, 2025, indicating active development and support. Users can expect regular improvements and bug fixes.

Can I customize illumeter's appearance?

Yes, illumeter offers settings and personalization options. You can easily toggle features on or off, deactivate unused values, and customize the app's appearance and feedback to your preference.