Vision Viewer vs Impulse Noise Decibel Meter
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Vision Viewer
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Key Features: β’ Transparent Browsing - Overlay webpages transparently on your rear camera β’ Opacity Control - Adjust background and content transparency in real-time β’ Multiple Tabs - Manage multiple tabs just like Chrome β’ Bookmarks - Organize bookmarks with folder structure β’ File Viewer - Supports PDF, images, Markdown, and ePUB β’ Archive Files - ZIP/CBZ image viewer Browse the web while walking, check recipes while cooking, stay informed while seeing the real world!
Impulse Noise Decibel Meter
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Firearm Noise Testing | Sound Level Meter helps you monitor sound levels (dB) in real time. Itβs designed for very loud environments such as workshops, concerts, and outdoor ranges, so you can make better hearing-safety decisions. The app uses your phoneβs microphone to estimate sound pressure level and shows current, minimum, average, and maximum readings with clear visual feedback. Key features β’ Real-time decibel meter (dB) β’ Min / Avg / Max tracking β’ A-weighting (dBA) for everyday noise (closest to human hearing) β’ C-weighting (dBC) for very loud environments and peak levels β’ Linear mode for raw/technical readings (no filtering) β’ Sensitivity calibration (+/β) to compensate for device microphone differences β’ Clean, readable interface for quick checks Important notes β’ This app is not a certified or laboratory-grade sound level meter. Readings vary by device model, microphone hardware, phone case, distance, and environment. β’ For general information and personal awareness only. Not intended for legal, regulatory, medical, or workplace compliance measurements. β’ Very loud sounds can damage hearing quickly. Always use appropriate hearing protection in loud environments. Privacy β’ Microphone input is used only to calculate sound level. β’ We do not sell personal data.
Screenshots
Verdict
The clearest difference is ads: Impulse Noise Decibel Meter at none against Vision Viewer's shown. Vision Viewer's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Vision Viewer | Impulse Noise Decibel Meter |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | β |
| Ads | Yes | No β better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 13.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 61 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | YOON HO YOUNG | Tigran Mkhitaryan |
In-app purchases
Vision Viewer
No in-app purchases
Impulse Noise Decibel Meter
No in-app purchases
Questions
Is Vision Viewer free?
Is Impulse Noise Decibel Meter free?
Do Vision Viewer or Impulse Noise Decibel Meter have ads?
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