Luminometer 3.0
Luminometer 3.0 Summary
Luminometer 3.0 is a free, ad-supported Android app in Tools by Smart and Small Software. Released in Jan 2018 (8 years ago). It has about 5.9K+ installs Based on AppGoblin estimates, it reaches roughly 571 monthly active users and generates around $<10K monthly revenue (0% IAP / 100% ads). Store last updated Aug 18, 2026
Recent activity: 3.00 installs this week (16 over 4 weeks) showing above average growth View trends →
Luminometer 3.0 SDKs Summary
App not yet scanned for SDKs.
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App Description
Easy operation! Very easy to use analog luminometer application.
[Overview]
Experience a high-precision light measurement tool that combines the soul of a classic analog meter with the convenience of modern digital features. "Analog Luminometer" turns your smartphone into a professional-grade light meter (Lux) for photography, interior design, agriculture, and workplace safety.
[Key Features]
• Hybrid Display: Beautifully animated analog needle alongside a high-visibility large digital readout.
• Auto-Range: Smoothly transitions from 20 to 200,000 Lux, automatically selecting the best scale for your environment.
• Logging & Graphing: Save measurements with a single tap. Review your data in a scrollable list or a detailed line graph with grid lines and data labels.
• Physical Button Support: Use your device's volume buttons for hands-free operation (Up: Record, Down: Hold).
• Self-Timer: Set a 2 to 60-second countdown for remote measurements. Automatically trigger a "Hold" or "Record" action when time is up.
• Pro Calibration: Adjust result accuracy within a +/- 200% range. Includes a "Calibration Helper" that calculates the correction ratio for you based on a reference device.
[Premium Mode]
By watching a short video ad, you can unlock Premium Mode for 4 hours:
• Remove all banner ads.
• Unlock Data Recording (REC) and Log View (LOG) features.
• Enable automatic data saving at the end of the timer.
*Video ads can be viewed by tapping the premium feature or by going to "Settings".
[How to Use]
1. Power On: Long-press the power button to start sensing.
2. Hold Value: Tap the "Hold" button or Volume Down to freeze the current measurement.
3. Save Data: Tap "REC" or Volume Up to log the date, time, and Lux value (Premium feature).
4. Calibration: Visit the settings and use the "Calibration Helper" to match the app's output with any professional reference meter.