Luminometer is a light-metering utility for iOS that calculates lux and foot-candle intensity using internal camera exposure compensation.
Product velocity
Dormant
Daily rank 🇺🇸
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Utilities
Sentiment
3.5
16 reviews
Nemesis
Fragmented field
The App DNA
What makes this app unique?
The app removes the financial barrier to professional light-measurement hardware for hobbyists and interior designers.
For Homeowners, greenhouse hobbyists, and professionals needing to measure light levels for plants, workstations, or interior lighting.
What does it look like?
Key features
Calculates light intensity using internal exposure compensation in both lx and foot-candle units.
Displays a live camera feed alongside real-time light intensity readings.
Unlocks advanced functionality via a weekly subscription model.
How much does it cost?
Subscription model anchored at $3.99/week, gating premium features behind an auto-renewing weekly payment.
Velocity
Dormant developmentopaqueShow more...
The app has seen no development activity for 549 days, placing it firmly in the zombie category. With only a single minor release recorded in the analyzed window, there is no evidence of ongoing maintenance or feature updates. The lack of activity suggests the project is no longer actively supported by the developer.
Who built it?
27GROUP
5 apps tracked · Utilities
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What do users think recently?
Review voice lately leans frustrated.
How are ratings & reviews evolving?
What users say, by theme
- Users report that accurate measurements require a physical diffuser which the app fails to mention
1 of 1 recent reviews analyzed · limited sample
Read the full review analysisUnlock 1 more frustration theme and 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Luminometer: Lux Light Meter
How's the Utilities market?
Luminometer maintains a 3.5-star rating across 16 total ratings, indicating low user satisfaction. The lack of updates for over 18 months signals a maintenance-mode posture that risks losing ground to active competitors.
The rivals identified
The Analyst's Read
Key takeaways for Luminometer: Lux Light Meter
Where is it heading?
Luminometer is in a state of stagnation, with no meaningful updates to address core usability issues for over a year. The lack of investment in basic user guidance and interface hygiene leaves the app highly vulnerable to any active competitor in the light-metering utility space.
- The 18-month development gap indicates a lack of active investment, which erodes user trust and prevents the app from addressing critical accuracy complaints.
- Intrusive ad placement obscures the core measurement interface, directly causing the negative sentiment observed in recent feedback.
The SWOT
- Internal exposure compensation enables lux measurement without external hardware
- Publishing a DIY diffuser guide could resolve primary accuracy complaints
Next best moves
Ship a DIY diffuser guide because users report accurate readings are impossible without one -> improve rating baseline
+ 1 more prioritized moveThe counter-intuitive read
The app's primary failure is not the subscription price…
Read the full takeSince the last report: Luminometer has seen no material changes to its feature set, pricing, or market position over the last 549 days. The app remains in a maintenance-mode state with persistent user complaints regarding accuracy and ad placement.
Bottom line
Luminometer requires a shift toward basic utility functionality, specifically providing the necessary diffuser instructions to make the core measurement mechanism viable. Addressing these accuracy barriers is the only path to stabilizing the user base before the long development gap leads to total churn.
Unlock 3 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is Luminometer accurate for professional lighting work?
Does Luminometer have intrusive ads?
Is there a free version of Luminometer?
Sources
- [1] App Store listing, source
Report last updated