Comparison

dB Meter vs Quick3D CAD Viewer

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

Head to head
About

dB Meter

Instantly measure sound levels with a real-time analog gauge. Analyze noise with average, peak, and time-averaged readings. Features include low-frequency indication and on-device calibration for accuracy. Works offline without internet.

Highlights
  • Real-time dB sound level measurement
  • Live min/average/peak readout
  • LAeq and LCeq time-averaged readings
  • Low-frequency indicator
  • Analog display
  • On-device calibration
  • Offline functionality
Read full description

Measure noise levels instantly - no setup needed. Point your iPhone at any sound source and see the decibel level in real time on a clean analog gauge. Perfect for concerts, restaurants, offices, nurseries, and noisy neighbors. FEATURES - Real-time dB sound level measurement - Live min / average / peak readout - LAeq and LCeq time-averaged readings (A and C weighting) - Low-frequency indicator (LCeq minus LAeq) for bass-heavy noise - Clean, easy-to-read analog display - On-device calibration for better accuracy - Works offline - no internet needed GO PRO - RTA spectrum analyzer - Peak hold - Full measurement history - Export & share readings (PDF, CSV, image) Built for musicians, contractors, teachers, and parents.

About

Quick3D CAD Viewer

Features
Read full description

Quick3D Viewer 3D CAD Viewing Made Simple. Quick3D Viewer is a free 3D model viewer for iPhone and iPad. Open and explore a wide range of 3D files, including STEP, IGES, STL, OBJ, and more, right from your mobile device. Whether you're on the factory floor, meeting with clients, or away from your desk, Quick3D Viewer makes it easy to inspect 3D models wherever you go. Key Features ■ Supports Multiple 3D File Formats View STEP / STP, IGES / IGS, STL, OBJ, PLY, 3MF, GLB, and USDZ files. ■ Intuitive 3D Navigation Rotate, zoom, and pan models using simple touch gestures. Explore your designs from different angles. ■ Full-Screen Viewing Hide banner ads in full-screen mode and enjoy more space to inspect your 3D models. ■ Designed for iPhone and iPad View 3D models on your phone or tablet, wherever your work takes you. Perfect For - Inspecting 3D models on the factory floor - Reviewing CAD designs and engineering projects - Sharing designs during meetings - Checking models for 3D printing - Viewing CAD files while on the go 3D CAD in Your Pocket. Make 3D viewing easier with Quick3D Viewer.

Screenshots

dB Meter4 screens
Quick3D CAD Viewer4 screens

Verdict

The call

The clearest difference is in-app purchases: Quick3D CAD Viewer at none against dB Meter's 1. dB Meter's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). On price, device support and iOS requirement 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. dB Meter sells 1 one-off in-app purchase. Quick3D CAD Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

dB Meter ships an update every 4 days, Quick3D CAD Viewer every 2 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 6 level
dB Meter versus Quick3D CAD Viewer: the parameters behind the verdict, then further details
ParameterdB MeterQuick3D CAD Viewer
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.0 — better18.6
Further details — not scored
Size6 MB28 MB
Age rating4+4+
DeveloperMichael BorisonRyo Tazaki

In-app purchases

1 purchases

dB Meter

One-time1
  • dBMeter Pro$4.99
None

Quick3D CAD Viewer

No in-app purchases

Questions

Is dB Meter free?
dB Meter is free to download, with in-app purchases available.
Is Quick3D CAD Viewer free?
Quick3D CAD Viewer is free to download, with no in-app purchases.
Do dB Meter or Quick3D CAD Viewer have ads?
Quick3D CAD Viewer shows ads; dB Meter does not.
Which is updated more often, dB Meter or Quick3D CAD Viewer?
dB Meter ships an update every 4 days, and Quick3D CAD Viewer every 2 weeks. Most recently, dB Meter was updated on October 24, 2026 and Quick3D CAD Viewer on October 29, 2026.

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