# Decibel Meter & Dosimeter — Uses NIOSH Standards

> Professional sound level meter with noise exposure tracking and smart alerts. (iPhone/iPad app by Mobile Card Games & Travel Apps LLC.)

- Source: https://appshunter.io/ios/app/decibel-meter-and-dosimeter/id6740248468 (this page in markdown: same URL + `.md`)
- Developer: [Mobile Card Games & Travel Apps LLC](https://appshunter.io/developer/453389232)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.00/5 from 17 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 23 MB
- Languages: Australian English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French (France), German (Germany) and 23 more
- Released: 2025-01-08
- Data updated: 2026-09-06
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/decibel-meter-and-dosimeter/id6740248468/reviews.md

## What is Decibel Meter & Dosimeter?

Your hearing is irreplaceable. Know when it's at risk.

Turn your iPhone into a sound level meter that monitors noise in real time and warns you before exposure becomes dangerous. Whether you're on a construction site, at a concert, or just curious about your daily environment — Decibel Meter gives you the clarity to protect what you can't get back.

What You Get — Free:
- Real-time decibel monitoring with a beautiful, color-coded gauge
- Instant noise categories: Quiet, Moderate, Loud, Very Loud
- Live current, peak, and average sound level statistics
- OSHA and NIOSH exposure time tracking with visual warnings
- Haptic feedback when noise levels change significantly
- Background monitoring — keeps tracking when you switch apps
- Dark mode and accessibility support

What Pro Unlocks — One Purchase, Yours Forever:

Smart Safety Alerts
- Custom alert thresholds — set personal dB limits for any environment
- Notifications at 80% of safe exposure time
- Immediate alerts when OSHA/NIOSH limits are reached

Noise History and Session Tagging
- Track your exposure patterns over days and weeks
- Tag sessions by location or activity (Office, Concert, Construction, and more)
- Filter history by tag to find patterns
- Detailed charts with peak and average levels

Professional Tools
- Calibration settings for reference level and offset adjustments
- Noise exposure summaries (OSHA/NIOSH reference levels) — generate and share as PDF
- Shareable PDF records of your measured noise exposure

Who It's For:
- Workers in noisy environments protecting their hearing
- Safety professionals monitoring workplace noise
- Sound engineers and musicians managing venue levels
- Parents and teachers checking classroom or play environments
- Anyone who wants to understand the noise around them

Why It Matters:
Noise-induced hearing loss is permanent. It builds gradually from exposure you may not notice. Decibel Meter tracks what your ears cannot — cumulative exposure over time — and tells you when to act.

Please note: Decibel Meter uses your device microphone to provide estimates. It is not a certified sound level meter or dosimeter, and it is not intended for hearing-protection, medical, or regulatory decisions.

Download now and find out what your ears have been living with.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Real-time decibel monitoring
- Noise exposure limit tracking
- Detailed noise history
- Exportable reports
- Smart notifications
- Professional calibration

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Annual Subscription | $24.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro - NIOSH Noise Exposure | $4.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/decibel-meter-and-dosimeter/id6740248468/reviews.md

### 3/5 — Not from NIOSH

*2026-04-18*

It was confusing to have NIOSH in this App's name, since the official NIOSH App is the NIOSH Sound Level Meter. Both Apps gave different measurements in a quiet bedroom seconds apart (18 dB for this one and 38 dB for the Sound Level Meter). No way to verify which measurement was the accurate, although the 38 dB seemed more realistic based on an online search -giving middle 3 star rating because I do not have formal verification. 
It was ultimately on me to notice the developer's name, which is clearly stated. Apple could consider labeling official Apps from organizations and institutions more clearly, similar to YouTube labeling a music video "official version" to distinguish it from other videos.

**Developer response:** Thanks for the thoughtful review. You are correct that this is not the official NIOSH app.

This app is independently developed, but it does use the official NIOSH occupational noise standards and methodology as the basis for its measurements and exposure calculations. Different readings between apps can still happen because of microphone hardware, calibration, device processing, weighting/averaging settings, and phone position, especially in very quiet rooms.

Your feedback is fair, and I am using it to make the app’s identity and standards basis clearer so it is easier to understand what the app is and what it is not.

### 1/5 — Wrong

*2025-08-13*

Not even close and im not paying for settings

**Developer response:** Thank you for your feedback. The accuracy of any decibel meter app is limited by the microphone hardware built into your device, and our app uses the highest quality readings available from that hardware. To help users who want more control, the Pro version offers professional calibration tools, smart safety alerts that run in the background, detailed noise exposure history, and an ad-free experience.

We appreciate you taking the time to share your experience, and we’ll continue working to make the app as useful and accurate as possible within the limits of each device.

## Frequently asked questions about Decibel Meter & Dosimeter

### What is NIOSH Decibel Meter?

NIOSH Decibel Meter transforms your iPhone into a professional sound level meter. It offers real-time decibel monitoring, noise exposure tracking based on NIOSH standards, and smart notifications for unsafe noise levels.

### How accurate is NIOSH Decibel Meter?

The app provides professional-grade accuracy for real-time decibel monitoring. It also includes professional calibration settings for reference level and offset adjustments to ensure precise readings.

### Does NIOSH Decibel Meter have ads?

No, the app offers an ad-free interface as part of its premium experience. This ensures an uninterrupted and professional monitoring experience for users.

### What are the subscription options for NIOSH Decibel Meter?

NIOSH Decibel Meter offers a weekly subscription at $0.99 with a 3-day free trial, and an annual subscription for $24.99. These subscriptions unlock premium features like unlimited history storage and an ad-free interface.

### Can I track my noise exposure over time with NIOSH Decibel Meter?

Yes, the Pro Features include comprehensive noise history tracking. You can analyze your noise exposure over time with detailed charts, exposure duration tracking, and complete history with peak and average levels.

### What devices support NIOSH Decibel Meter?

NIOSH Decibel Meter is supported on iPhone and iPad devices. It also features widget support for quick readings on compatible devices.

### How does NIOSH Decibel Meter help with safety?

The app provides real-time exposure limit tracking and warnings, with visual and notification alerts for unsafe noise levels. It also offers automated exposure time tracking based on NIOSH standards and smart notifications at 80% of exposure limits.

### How often is NIOSH Decibel Meter updated?

The app was last updated on November 17, 2025, with version 2.1. Regular feature updates are included as part of the premium subscription experience.

## Version history (last 5 releases)

### 3.6 — 2026-08-14

New in this version:

• Exported PDFs are now called Noise Exposure Summaries and show OSHA/NIOSH reference levels more clearly.

• Clearer guidance about your readings throughout the app, plus a new About section in settings.

• Minor improvements and fixes.

### 3.5 — 2026-08-09

New in this version:

• We've published a new, clearer privacy policy. The essentials haven't changed: your audio is never recorded, and your measurements stay on your device.

• Reliability improvements and minor fixes.

### 3.4 — 2026-07-11

New in this version:

• Every reading now tells you what it sounds like — ≈ Quiet office, ≈ City traffic, ≈ Power tools, ≈ Jackhammer — so a decibel number means something at a glance.

• A redesigned live meter: a cleaner, easier-to-read gauge with a smoother decibel readout.

• A color-coded safety scale shows at a glance as levels approach the 85 dB and 90 dB workplace limits.

• Refined session summaries, plus reliability and translation improvements across 38 languages.

### 3.3 — 2026-07-07

New in this version:

• Every reading now tells you what it sounds like — ≈ Quiet office, ≈ City traffic, ≈ Power tools, ≈ Jackhammer — so a decibel number means something at a glance.

• A redesigned live meter: a cleaner, easier-to-read gauge with a smoother decibel readout.

• A color-coded safety scale shows at a glance as levels approach the 85 dB and 90 dB workplace limits.

• Refined session summaries, plus reliability and translation improvements across 38 languages.

### 3.2 — 2026-07-06

New in this version:

• Every reading now tells you what it sounds like — ≈ Quiet office, ≈ City traffic, ≈ Power tools, ≈ Jackhammer — so a decibel number means something at a glance.

• A redesigned live meter: a cleaner, easier-to-read gauge with a smoother decibel readout.

• A color-coded safety scale shows at a glance as levels approach the 85 dB and 90 dB workplace limits.

• Refined session summaries, plus reliability and translation improvements across 38 languages.

## Apps similar to Decibel Meter & Dosimeter

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Noise Analyzer: Decibel Meter](https://appshunter.io/ios/app/noise-analyzer-decibel-meter/id6477534680) | 2.0 (1) | Free | Utilities |
| [dB Meter - Real-Time Alerts](https://appshunter.io/ios/app/db-meter-real-time-alerts/id6743526896) | — | Free | Utilities |
| [SPL Meter - dBTracker](https://appshunter.io/ios/app/spl-meter-dbtracker/id6742470686) | 4.8 (9) | Free | Utilities |
| [Decibel Meter - dB Noise Meter](https://appshunter.io/ios/app/decibel-meter-db-noise-meter/id6504185770) | 4.5 (2) | Free | Utilities |
| [Decibel Sound Meter - dBlyze](https://appshunter.io/ios/app/decibel-sound-meter-dblyze/id6745800603) | — | Free | Utilities |
| [Soundmeter Noise Measure](https://appshunter.io/ios/app/soundmeter-noise-measure/id6752567142) | 4.7 (12) | Free | Utilities |

## More apps by Mobile Card Games & Travel Apps LLC

- [Address Finder: Where Am I?](https://appshunter.io/ios/app/address-finder-where-am-i/id6474217892)
- [County Names & Lines](https://appshunter.io/ios/app/county-names-and-lines/id6474261068)
- [Aces Up Solitaire: Card Game](https://appshunter.io/ios/app/aces-up-solitaire-card-game/id6737347558)
- [Photo Location Finder - GPS](https://appshunter.io/ios/app/photo-location-finder-gps/id6737482353)
- [Hiking & Camping Survival Kit](https://appshunter.io/ios/app/hiking-and-camping-survival-kit/id6737653440)
- [Color Identifier: Paint Match](https://appshunter.io/ios/app/color-identifier-paint-match/id6738211457)

All apps by Mobile Card Games & Travel Apps LLC: https://appshunter.io/developer/453389232

## Related topics

[niosh decibel meter](https://appshunter.io/ios/topics/niosh-decibel-meter)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*