Comparison

Light Meter vs Lghtmtr

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Light Meter

Measure ambient light levels using your smartphone's camera. Get quick and precise lux readings for personal use, saving you the cost of professional equipment. Simply open the app and point your camera to see real-time measurements.

Highlights
  • Easy lux measurement
  • High precision readings
  • Real-time updates
  • Unique and attractive design
  • Simple and convenient to use
Features
Read full description

Light Meter – Professional Exposure & Lux Meter Turn your iPhone into a powerful light meter for photography, filmmaking, video, studio lighting, and everyday light measurement. Measure light levels in lux, foot-candles, and EV, then instantly calculate the ideal camera exposure using ISO, aperture, and shutter speed. Use precise spot metering, average metering, exposure compensation, histogram, waveform, false color, and zebra tools to better understand every lighting situation. Professional Light Metering Live lux and foot-candle measurement EV and EV100 calculations Spot, average, center-weighted, and multi-zone metering Exposure lock and compensation Custom calibration profiles Measurement stability and confidence indicators Photography & Video Tools ISO, aperture, and shutter calculator Exposure triangle Histogram Waveform monitor False color Zebra exposure display Zone System Lighting ratio calculator Color temperature estimation ND & Long Exposure ND filter calculator Long exposure calculator Shutter speed conversion Optical density calculations Reciprocity calculator for film photography Lighting Analysis Measure key, fill, rim, and background lighting Calculate lighting ratios Create lighting measurement maps Analyze lighting uniformity Save measurements with notes and photos Professional Workflow Measurement history Project-based measurement sessions Photo and EXIF analysis Custom reference profiles CSV, JSON, PDF, and image export iCloud synchronization Apple Watch companion Home Screen widgets Apple Shortcuts support Designed with a clean, modern iOS interface, Light Meter gives photographers, cinematographers, filmmakers, lighting technicians, students, and creators a powerful set of tools for understanding light and making better exposure decisions. Note: Camera-based lux measurements are estimates and can vary by device, scene, and calibration. For professional or compliance-critical measurements, use a calibrated external light sensor. The App offers two subscription options: -$3.99 Monthly -$34.99 Yearly Prices may vary by location. Privacy Policy: https://privacy.vanlangapps.com Terms of Use: https://tos.vanlangapps.com Should you choose to upgrade to a Pro subscription, payment will be charged to your iTunes account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You may cancel automatic renewal and manage your subscription by selecting Manage App Subscriptions in your iTunes Account settings and selecting the subscription you want to modify. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a Pro subscription, where applicable.

About

Lghtmtr

This app provides a minimalist light meter to help users determine ideal exposure settings for photography. It visually demonstrates the relationship between ISO, aperture, and shutter speed, making it intuitive for learning photographers.

Highlights
  • Minimalist light meter
  • Intuitive exposure settings
  • Visual feedback
  • Adjustable ISO, aperture, shutter speed
  • Camera profile customization
  • Scene reference with readings
Features
Read full description

Lghtmtr is a beautifully simple light meter that helps you find — and understand — the ideal exposure settings for a scene. Built for film photographers and anyone learning the craft, it makes the relationship between ISO, aperture, and shutter speed feel intuitive and the visual feedback helps reinforce the connection between them. Take a reading, get your settings, and start exploring. Adjust one value and the others respond instantly. Lock settings to experiment and see how each change affects your exposure. You can easily add camera profiles to the app to limit the possible values to what's most relevant to your camera and lens combination. With a visual reference of the scene behind every reading, Lghtmtr helps you shoot with clarity and confidence.

Screenshots

Light Meter4 screens
Lghtmtr4 screens

Verdict

The call

The clearest difference is review sentiment: Lghtmtr at 80% against Light Meter's 30%. Lghtmtr also leads on rating (4.6 vs 2.5) and update cadence (every 3 months vs every 71 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Light Meter sells 3 in-app purchases, starting at $3.99 per month and Lghtmtr sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Lghtmtr holds the better App Store score, 4.6 against 2.5. That said, the two scores are not equally well evidenced: Lghtmtr has 158 ratings behind it against 31, so its average is the more settled of the two. Written reviews point the same way: 30% of Light Meter's written reviews are positive against 80% of Lghtmtr's.

UpkeepUpdate frequency

Light Meter ships an update every 71 months, Lghtmtr every 3 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
Light Meter versus Lghtmtr: the parameters behind the verdict, then further details
ParameterLight MeterLghtmtr
PriceFreeFree
Rating2.5 (31 ratings)4.6 (158 ratings) — better
Positive reviews29.5% of reviews80.0% of reviews — better
Number of ratings31158 — better
Update frequencyEvery 71 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size2 MB49 MB
Age rating4+4+
DeveloperTu Anh DoAlexander Jacque

Customer experience

Light Meter

All ratings31 ratings
Positive38.7%
Neutral6.5%
Negative54.8%
Written reviews61 reviews
Positive29.5%
Neutral8.2%
Negative62.3%

Lghtmtr

All ratings155 ratings
Positive89.7%
Neutral3.9%
Negative6.5%
Written reviews75 reviews
Positive80.0%
Neutral6.7%
Negative13.3%

In-app purchases

3 purchases

Light Meter

Subscriptions2
  • Light Meter Pro Monthly$3.991 Month
  • Light Meter Pro Yearly$34.991 Year
One-time1
  • Lighte Meter Pro Lifetime$79.99
1 purchases

Lghtmtr

One-time1
  • Coffee tip$4.99

Questions

Is Light Meter free?
Light Meter is free to download, with in-app purchases available.
Is Lghtmtr free?
Lghtmtr is free to download, with in-app purchases available.
Which has better reviews, Light Meter or Lghtmtr?
Lghtmtr is rated higher. Light Meter averages 2.5 out of 5 from 31 ratings, while Lghtmtr averages 4.6 from 158 ratings.
Do Light Meter or Lghtmtr have ads?
Neither Light Meter nor Lghtmtr shows ads.
Which is updated more often, Light Meter or Lghtmtr?
Light Meter ships an update every 71 months, and Lghtmtr every 3 months. Most recently, Light Meter was updated on October 26, 2026 and Lghtmtr on October 29, 2026.

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