Comparison

Screen Brightness Nits Meter vs Night PDF

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

Head to head
About

Screen Brightness Nits Meter

Measure the brightness of any screen, monitor, or display using your smartphone camera. Offers real-time measurements in multiple units and supports calibration for optimal accuracy. Ideal for professionals and enthusiasts needing precise luminance data.

Highlights
  • Measure screen brightness (nits)
  • Real-time luminance readings
  • Multiple measurement units (fL, sb, L, asb, cd/ft²)
  • Camera-based measurement
  • Calibration for accuracy
  • Save measurements with notes
  • Multilingual support
Features
Read full description

Measure the brightness of any screen, monitor, TV, or display using your smartphone camera! Designed for professionals, enthusiasts, and anyone who needs quick and intuitive screen brightness measurements. ACCURACY The app is pre-calibrated against a professional nits meter, but for optimal accuracy on your specific device, we recommend calibrating the app using the built-in calibration feature. MULTIPLE MEASUREMENT UNITS Supports Nits (candela per square meter, cd/m²), Foot-Lambert (fL), Stilb (sb, cd/cm²), Lambert (L), Apostilb (asb, blondel), and Candela per ft² (cd/ft²). REAL-TIME MEASUREMENTS Get instant feedback with continuous real-time luminance measurements. SAVE MEASUREMENTS Save measurements with notes for detailed documentation and easy reference. MULTILINGUAL SUPPORT & DOCUMENTATION Full support for 40 different languages with comprehensive, integrated documentation. CUSTOMIZABLE SETTINGS Tailor the app settings to your specific needs. WHAT YOU CAN MEASURE • TVs and monitors • Computer displays • Smartphones and tablets • Digital signage • Professional monitors • LCD, OLED, LED, HDR, QLED and AMOLED displays PERFECT FOR • TV and display technicians • Video production professionals • Gaming enthusiasts • Home theater enthusiasts • Office lighting consultants • Photographers and videographers HOW TO USE Simply point your device's camera directly at the screen surface you want to measure. Position your device perpendicular to the screen at a distance of no more than a centimeter or half an inch from the display surface. Ensure the screen is set to D65 (6500K standard white). Other color temperature settings may significantly affect measurement accuracy. Privacy Policy, https://nits-meter.contechity.com/pp.html End User License Agreement, https://nits-meter.contechity.com/eula.html FREE FOR A LIMITED TIME Enjoy full functionality for a few weeks. After that, choose a one-time fee or subscription — still at a fraction of the cost of a dedicated device. DEDICATED SUPPORT Your feedback helps us improve the app. Contact us at apps@contechity.com for support or suggestions. Download now and turn your phone into a luminance meter for any screen or display.

About

Night PDF

Features
Read full description

Night PDF is a clean, local-first PDF reader built for comfortable reading, especially at night. Designed with a minimal neuromorphic UI, Night PDF helps you open PDFs quickly, continue where you left off, and read with theme-aware rendering that adapts the page background and text colors for better comfort. Key features: Local-first PDF reading (no account required) Multiple reading themes: Dark, Very Dark, Eye Mode, and Light Theme-aware PDF rendering for a comfortable reading experience Recent files with preview thumbnails and reading progress Resume from your last page automatically Continuous scroll or page-snapped reading Smooth, minimal controls focused on usability Offline-friendly experience Privacy-focused: Your PDFs and reading data stay on your device No analytics, ads, or tracking built into the app Night PDF is made for readers who want a simple, modern PDF experience without clutter.

Screenshots

Screen Brightness Nits Meter4 screens
Night PDF4 screens

Verdict

The call

The clearest difference is in-app purchases: Night PDF at none against Screen Brightness Nits Meter's 2. Night PDF also leads on iOS requirement (13.0 vs 15.0). On price, ads and device support 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. Screen Brightness Nits Meter sells 2 in-app purchases, starting at $0.99 per month. Night PDF asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Screen Brightness Nits Meter versus Night PDF: the parameters behind the verdict, then further details
ParameterScreen Brightness Nits MeterNight PDF
PriceFreeFree
Rating4.3 (20 ratings) — better—
Positive reviews71.4% of reviews—
Number of ratings20 — better—
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size43 MB21 MB
Age rating4+4+
DeveloperContechity ABAditya Jagatha

In-app purchases

2 purchases

Screen Brightness Nits Meter

Subscriptions1
  • Full Access (Month)14 Days trial$0.991 Month
One-time1
  • Full Access (Lifetime)$6.99
None

Night PDF

No in-app purchases

Questions

Is Screen Brightness Nits Meter free?
Screen Brightness Nits Meter is free to download, with in-app purchases available.
Is Night PDF free?
Night PDF is free to download, with no in-app purchases.
Do Screen Brightness Nits Meter or Night PDF have ads?
Neither Screen Brightness Nits Meter nor Night PDF shows ads.

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