# Luxi > Accurate light meter app for iPhone photography with diffusion dome accessory. (iPhone/iPad app by James Flynn.) - Source: https://appshunter.io/ios/app/luxi/id670342309 (this page in markdown: same URL + `.md`) - Developer: [James Flynn](https://appshunter.io/developer/477798188) - Category: Photo & Video, Utilities - Price: Free - Rating: 2.60/5 from 7 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 6 MB - Released: 2013-11-10 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/luxi/id670342309/reviews.md ## What is Luxi? Luxi is a light meter app for iPhone. With the Luxi diffusion dome accessory, available at luxiforall.com, Luxi gives accurate, reliable light meter readings for photography and other applications. ## Key features - Accurate light meter readings - Photography light metering - Diffusion dome accessory integration - Reliable readings for various applications - iPhone and iPad compatible ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/luxi/id670342309/reviews.md ### 5/5 — It’s a great app *2022-04-24, version 2.0.10* I constantly use it to check against the built-in SLR camera meter in tricky lighting situations. The incident light Luxi dome is great to set lighting ratios. The spot function (no Luxi) and an 18% gray card is great for getting accurate exposures. If you still use film cameras, it’s an inexpensive addition to your gadget bag. ### 1/5 — Doesn’t work *2020-05-13, version 2.0.10* Bought the meter on amazon. Downloaded the app. Totally confusing after sitting with it for over an hour. Why is this so difficult? No wonder it only has 3 reviews. ### 2/5 — Love the idea but app is unusable *2020-02-16, version 2.0.10* After purchasing the luxi, the app frequently “flips” to the view telling you to attach the already attached luxi every few seconds making it impossible to calibrate ### 5/5 — Nice *2019-08-16, version 2.0.10* A simple app with a huge impact. Now I don’t need a separate light meter- I can use my phone. ### 1/5 — No update?!? *2015-09-28, version 1.2.2* Useless right now. Don't waste film, find another meter. For example: f/4 @ ISO 3,200 (indoors around sunset on a cloudy day)...returns a shutter speed of 1/1000th to 1/1600th of a second. ### 1/5 — 100% Broken *2015-09-19, version 1.2.2* Does not work with iOS9. Completely broken. Massively disappointing. ### 3/5 — Nice app *2015-03-29, version 1.2.2* Love this accessory and app. I work as a lighting designer and would love to see a mode that just lets me measure foot candles ### 3/5 — Correction to my earlier review *2014-04-16, version 1.1.3* New notes: I figured out why the screen flipped. It saw an image, so it knew the Luxi dome wasn't attached. I guess that is a warning... With the dome it appears to work. Not sure why the f-stops don't match conventional values, but that should only be a minor annoyance. I upgraded my review to 3 stars since it does seem to work. Would like traditional f-stops and quicker response to move the rating up. Old review: I love the idea - too bad it's not ready. The screen flipped constantly during my brief test. It's not usable yet. ### 5/5 — 👍👍 *2014-01-17, version 1.1.2* Kickstarter backer. Very useful for an amateur photographer like me. Very accurate as well!!! ### 3/5 — Video Producer *2013-11-24, version 1.1* This is a really great app and really great idea. It's very young in its development so there are some things I hope make enough sense to revise the app. My biggest issue is I wish that locked exposure controls saved after you close and reopen the app. If I lock the shutter speed, ISO, and EV I feel like the should be same if I switch apps for a moment. My other issue that I have is seriously knit picky, but it would be super nice if the ISO wheel went the other direction. I understand the logic with them going in the direction of exposure changes, but it would make more sense to me if the wheel went up rather than down in value. This app was concepted to have white balance, and tint measurements. When this app gets a little more mature it will be amazing, and earn five stars. ## Frequently asked questions about Luxi ### What is Luxi? Luxi is a light meter application designed for iPhone and iPad. It provides accurate and reliable light meter readings, particularly useful for photography. ### Does Luxi require any additional accessories? Yes, Luxi works best with the Luxi diffusion dome accessory. This accessory is available for purchase separately at luxiforall.com to ensure accurate readings. ### What devices is Luxi compatible with? Luxi is compatible with iPhone, iPad, and iPod devices. It is designed to run on Apple's mobile operating system. ### How accurate are Luxi's readings? With the Luxi diffusion dome accessory, the app provides accurate and reliable light meter readings. This accessory is key to achieving optimal measurement precision. ### What is the age rating for Luxi? Luxi has an age rating of 4+, making it suitable for a wide range of users. This indicates it contains no mature content. ### When was Luxi last updated? The latest version of Luxi, 2.0.10, was last updated on August 13, 2019. The app was initially released on November 10, 2013. ### What is the user rating for Luxi? Luxi has an average rating of 2.6 stars based on 7 ratings. This suggests mixed user experiences with the application. ### Is Luxi free to download? Yes, Luxi is available for free download. There are no upfront costs associated with acquiring the application itself. ## Version history (last 5 releases) ### 2.0.10 — 2019-08-13 Updated help document. ### 2.0 — 2019-06-16 * Improved calibration controls * Added convenient link to the User's Guide (tap the "?" icon in the app) * Fixed some broken links * Other fixes and improvements ### 1.2.4 — 2016-01-17 Calibrated for iOS9.2 ### 1.2.3 — 2015-10-01 Calibrated for iOS9 ### 1.2.2 — 2015-01-07 iPhone6 and 6 Plus support ## Apps similar to Luxi | App | Rating | Price | Category | | --- | --- | --- | --- | | [Lghtmtr](https://appshunter.io/ios/app/lghtmtr/id956251190) | 4.1 (61) | Free | Photo & Video | | [This App is a Light Meter](https://appshunter.io/ios/app/this-app-is-a-light-meter/id1449194398) | 4.1 (13) | Free | Photo & Video | | [DOF Slider](https://appshunter.io/ios/app/dof-slider/id654949121) | 3.6 (8) | Free | Photo & Video | | [Massive Dev Chart Timer](https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770) | 3.8 (50) | $9.99 | Photo & Video | | [myLightMeter PRO](https://appshunter.io/ios/app/mylightmeter-pro/id583922375) | 4.8 (1,035) | $3.99 | Photo & Video | | [Cine Meter II](https://appshunter.io/ios/app/cine-meter-ii/id846918884) | 4.5 (24) | $24.99 | Photo & Video | ## More apps by James Flynn - [Backbeater](https://appshunter.io/ios/app/backbeater/id477798185) All apps by James Flynn: https://appshunter.io/developer/477798188 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*