Light Meter - Lux Camera is an exposure and light measurement tool for photographers and filmmakers on iOS.
The App DNA
What makes this app unique?
It replaces the need for dedicated, expensive hardware light meters by utilizing the iPhone's camera sensor for real-time lux and EV calculations.
For Photographers, cinematographers, filmmakers, and lighting technicians requiring precise light measurement and exposure calculation tools.
What does it look like?
Key features
Measures lux, foot-candles, and EV using device camera sensors with spot, average, and multi-zone metering modes.
Calculates ISO, aperture, and shutter speed, plus includes histogram, waveform, false color, and zebra exposure displays.
Saves measurement sessions with notes, photos, and EXIF data for later review.
How much does it cost?
The subscription model gates advanced professional tools behind a Pro tier, though the current stability issues make the value proposition difficult to justify.
Velocity
Dormant developmentUX improvementsShow more...
The app shows a pattern of extreme inactivity, with the latest release arriving over 11 years after the previous version. Given the significant duration between updates, the development momentum is classified as a zombie state. The latest release provides only generic UI and UX improvements, offering no indication of active feature development or ongoing support.
Who built it?
Tu Anh Do
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What do users think recently?
Fresh user feedback skews frustrated. Users appreciate simple light measurement functionality provides consistent readings for basic greenhouse and photography monitoring tasks.
How are ratings & reviews evolving?
What users say, by theme
- Simple light measurement functionality provides consistent readings for basic greenhouse and photography monitoring tasks
- Frequent application crashes and launch failures prevent users from accessing the light measurement tools
17 of 17 recent reviews analyzed · moderate confidence · Frustrated overall
Read the full review analysisUnlock 2 more frustration themes and 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Light Meter - Lux Camera
How's the Photo & Video market?
Light Meter - Lux Camera occupies a niche in the Photo & Video category, but its 2.5-star rating across 31 total ratings reflects deep user dissatisfaction with stability. The lack of consistent updates over the last decade has left the app vulnerable to modern, more reliable competitors.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Light Meter - Lux Camera
Where is it heading?
The market for mobile light meters is consolidating around reliable, frequently updated tools that offer better stability. Light Meter - Lux Camera remains exposed due to its history of dormancy and current technical instability, which will likely accelerate user migration to more reliable alternatives before the next major update.
- Persistent launch crashes prevent users from accessing core measurement tools, which drives immediate churn and negative store ratings.
- Aggressive ad-hijacking behaviors disrupt the measurement workflow, which erodes the professional utility and brand credibility of the app.
The SWOT
- Professional-grade lighting toolset (waveform, false color) enables precise exposure control
- Simplified ad-free entry tier could capture casual users
Next best moves
Audit and fix launch-crash triggers because they are the top-cited barrier to entry → restore daily active usage
+ 1 more prioritized moveThe counter-intuitive read
The app's decade-long dormancy is its primary competitive risk…
Read the full takeSince the last report: The competitive outlook has sharpened to emphasize the risk of user migration to modern alternatives, while the SWOT analysis now explicitly identifies the threat posed by frequently updated rivals. No functional changes occurred, as the app remains in a state of technical instability.
Bottom line
The persistent launch crashes and intrusive ad patterns invalidate the professional positioning, as users cannot rely on the tool for critical lighting tasks. Addressing the crash-on-launch rate is the only path to justifying the Pro subscription tier.
Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is Light Meter - Lux Camera reliable for professional photography?
Does the app contain intrusive advertisements?
What are the limitations of the free version?
Sources
Report last updated