Light Meter LM-3000 4+
Simple & accurate measurement!
Lightray Innovation GmbH
Designed for iPad
-
- Free
- Offers In-App Purchases
Screenshots
Description
Measure illuminance in lux or foot-candle with the most accurate light meter app out there.
Why waste money on a hardware meter when you’re already carrying one in your pocket? The LM-3000 offers the same quality and usability as a handheld or pocket light meter. You won't need any additional light sensor — the camera already got you covered. The LM-3000 comes with a clean and simple user interface and most importantly: No Ads!
See it in action here: https://youtu.be/EJW7NfE2qCk
The LM-3000 is even more accurate than almost any cheap light meter available. Besides that, its measurement algorithm delivers unrivaled sensitivity to capture the faintest lighting changes, empowering new possibilities in light pollution and health research.
Developed and tested by optics scientists and engineers, calibrated using professional grade Class A equipment for all iPhones and iPads, the LM-3000 is truly a light meter you can trust!
Download the app for free and use it for some time! If you like it, you may buy the unlimited battery pack to use the LM-3000 for as long as you want, even when switching to a new device. Your purchase allows us to provide an Ad-free experience and helps our small team to keep on building great apps to measure light accurately and easily.
To allow the app to accurately measure light intensity (lux or foot-candle) you must use a diffuser. You can either easily build one yourself for free or get the easy-to-use Diffuser & Cosine Corrector accessory from our website (-> lightray.io/diffuser).
If you encounter any problems or have feedback, don't hesitate to reach out: https://lightray.io/lightmeter#contact
As a proud member of 1% for the Planet we are donating at least one percent of all our revenue to environmental nonprofit organizations. With everything that you purchase from us, YOU will be giving back!
What’s New
Version 1.9.3
We've added a new feature that allows for an accurate placement of the diffuser accessory.
Ratings and Reviews
Good, with caveats
👍 PROS (functional)
1) Displays measurement in both Lux and Lumens.
2) Simple, clear user-interface.
3) Simple instructions for making home-made diffuser (although I wonder whether heavy white tracing paper better than plain white copier paper?)
👍 👏 PROS (biz/marketing)
4) Free trail (albeit unpublicised and very short)
5) Reasonable one-off payment, no subscription required. (BIG PLUS; who isn't sick of subscriptions for single function / occasional use apps?)
6) Good privacy policy; another BIG PLUS if yr sick of personal data being stolen and exploited by tech companies.
👎CONS:
1) Front camera operation only. Wish it used back camera so I could watch results in real time.
2) Unclear pricing / trail period. Come on guys. Privacy policy hints at decent company, so why not ignore 'trick the user' trend and just be upfront about trial and cost?
Nobody's digging around in user manual for pricing info.
Purpose of 'battery' icon unclear.
Even if you read reviews and understand battery icon, it starts off almost 'empty' so it's impossible to gauge how much trial period is left. It's annoying.
🤔NEUTRAL:
Haven't yet tested accuracy against real (ie physical) light meter. Hope trial lasts long enough to do so. (Update: it didn't).
Happy to pay one-off fee for apps that meet needs and respect privacy. (Why should apps to be free? Developers need to eat!).
🙏 I just like to know about trial periods and costs upfront. 😊
Developer Response ,
Hi JulTimes2011,
Thanks a lot for your thoughtful and honest review! Happy to hear that you like our app and how we do business 😊
Informing about the free trial (which, by the way, will last at least 48 hours) has been a bit of an issue and it seems like we didn't find the optimal solution yet. We have this in our radar and your input helps as well!
Best regards,
Dominik and the Lightray Team
Extremely useful app that is accurate!
I downloaded this, and contrary to some other reviews, the app did let me use it for free. There is a battery that will slowly deplete to let you know how much time you have left. You don’t get hours of use, but you get long enough to try it for free.
I have since purchased this useful app and am extremely happy with it. I have found it accurate when tested against other light meters, and it is a lot easier to carry around. MAKE SURE that you make the diffuser to use with it, or your readings will not be accurate at all. For the price I’m very impressed!
Developer Response ,
Hi Faithful Penguin,
Thank you very much for your detailed review and your support! We're happy to hear that our app is helpful to you!
Best regards,
Dominik and the Lightray Team
Very good
Very accurate would recommend!!😆
Developer Response ,
Hi Niamh,
Thank you very much for your review! We‘re happy to hear that our app delivers value to you!
Best regards,
Dominik and the Lightray Team
App Privacy
The developer, Lightray Innovation GmbH, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
- Lightray Innovation GmbH
- Size
- 34.4 MB
- Category
- Utilities
- Compatibility
-
- iPhone
- Requires iOS 12.0 or later.
- iPad
- Requires iPadOS 12.0 or later.
- iPod touch
- Requires iOS 12.0 or later.
- Mac
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Languages
-
English, French, German, Italian, Spanish
- Age Rating
- 4+
- Copyright
- © 2024 Lightray Innovation GmbH
- Price
- Free
- In-App Purchases
-
- Lifetime Battery £7.99