Light Meter: Lux-525 Pro

Light Meter: Lux-525 Pro

Measure light intensity & cct

116 ratings
9 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • February 28, 2023
  • September 9, 2026
Light Meter: Lux-525 Pro screenshot #1 for iPhone
Light Meter: Lux-525 Pro screenshot #2 for iPhone
Light Meter: Lux-525 Pro screenshot #3 for iPhone
Light Meter: Lux-525 Pro screenshot #4 for iPhone
Light Meter: Lux-525 Pro screenshot #5 for iPhone
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About

This app functions as a precise and user-friendly light meter using your phone's built-in sensors. It measures illuminance, color temperature, PPFD/PAR, DLI, and luminous flux in real-time. It also includes a calculator for various illumination parameters and allows sharing or saving of measurements.

Real-time illuminance measurement
Color temperature measurement
PPFD/PAR and DLI calculation
Built-in illumination calculator
Share and save measurements
No additional equipment needed
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What's New in Light Meter

1.4

September 9, 2026

- Improved compatibility with iOS 27 - Bug fixes and more reliable measurements

Subscription plans

Premium Monthly Subscription

Unlimited access to all features

$3.991 Month
3 Days trial
How to cancel Light Meter subscription ⁉️
2

In-App Purchases

$19.99

Premium Lifetime Subscription

Unlimited access to all features

User reviews

Simple yet interesting

So far what I needed was to read fixtures in a classroom and worked for this simple task

Response from developer

Glad to hear the app was useful and worked well for your needs. Thanks for the feedback!

Need to pay

You need to pay to use anything beyond lux.

Bern

Just right

Response from developer

Thanks for your kind words - nothing matters more to us than knowing you had a great experience!

Way off!

Using a spider farmer g5000 grow light sitting at 24” above canopy pulling 200 watts at 40% in 4th week after seed popped soil surface. Leaves are praying but level with eye. This app says I’m at 70 ppfd. Wouldn’t suggest this app to nobody. Doesn’t even reach suggested ppfd sitting right under light at 100%. You use this and you’ll fry your plants crispy for sure.
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Response from developer

Thank you for your feedback. We’re sorry to hear that the measurements didn’t meet your expectations. During the development of the app, we conducted extensive research and numerous experiments to account for a wide range of lighting conditions and different types of light sources. In most practical scenarios, we were able to achieve a high level of accuracy, though certain setups may still result in deviations. We’ll definitely take your comments and experience into consideration as we look into the possible causes of these discrepancies and make any necessary adjustments. Thank you for helping us improve our product!

Excellent light measure

Very easy to use and excellent light meter. It is also reasonably accurate and no big fluctuations when you hold your phone steadily in front or under the source as the case may be. Works for LED, incandescent, natural sun etc. No required diffuser attachments. No muss no fuss. Totally decent application!
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Response from developer

We are grateful for your positive feedback! We are constantly working to improve our light meter, and your support is very important to us. Thank you for choosing our app!

Developer apps

FAQ

What does the Lux-525 Pro app do?

The Lux-525 Pro app is a universal, precise, and easy-to-use light meter that utilizes your phone's built-in sensors. It measures real-time illuminance, color temperature, PPFD/PAR, DLI, and luminous flux without requiring any additional equipment.

What are the key features of this light meter app?

Key features include real-time measurements of illuminance, color temperature, PPFD/PAR, and DLI. It also offers a built-in calculator for various illumination parameters and allows users to share or save their measurements.

Is Lux-525 Pro free to use?

The app is free to download and use, with in-app purchases available for advanced features or full functionality. The specific pricing for in-app purchases can be found within the app store listing.

What kind of devices is Lux-525 Pro compatible with?

This app is designed for mobile devices and requires built-in sensors to function. Specific compatibility details, such as supported operating system versions, are typically listed on the app's page in the app store.

Who would benefit from using the Lux-525 Pro app?

This app is ideal for photographers, individuals growing plants indoors, or anyone needing to analyze ambient light conditions for various purposes. It provides accurate measurements for understanding light intensity and quality.