Report updated May 7, 2026
Sound Meter (Noise Detector)
For individuals concerned with environmental noise exposure, hearing health, and those seeking focus-oriented audio content.
Sound Meter (Noise Detector) is a market-leading health & fitness app that is completely free. With a 4.5/5 rating from 8 reviews, it delivers strong user satisfaction. Users particularly value high measurement accuracy provides reliable data for users performing sound and hearing tests.
What is Sound Meter (Noise Detector)?
Sound Meter is a health-focused utility app for iOS that provides real-time noise detection and hearing diagnostic tests.
Users hire this app to monitor environmental noise exposure and perform basic hearing health checks without the cost of professional equipment.
Current Momentum
v9.0 · 19mo ago
Zombie- Ships general user experience improvements.
- Maintains stable diagnostic feature set.
Active Nemesis
Decibel X:dB Sound Level Meter
By SkyPaw Co.
Other Rivals
7-Day Rank Pulse 🇺🇸
Health & FitnessNo ranking data
Rating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
What Does It Look Like?
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What Are The Key Features?
Real-time decibel measurement using the device microphone.
Visual notifications for safety thresholds.
In-app diagnostic tool for hearing assessment.
Curated music tracks for stress reduction.
How much does it cost?
- Free version with no stated subscription or IAP
The app operates as a free utility with no visible monetization gates, likely relying on ad-supported traffic.
Who Built It?
Ngo Bien
Providing offline-first language reference tools and environmental utility apps. Focused on accessibility for bilingual speakers and health-conscious users.
Portfolio
13
Apps
What other apps does Ngo Bien make?
English-Vietnamese Dictionary.
Advanced English Dictionary
Vietnamese-English Dictionary.
Vietnamese Dictionary.
Russian-Vietnamese Dictionary
French-Vietnamese Dictionary
Explore the full Ngo Bien report
Portfolio breakdown, audience, momentum, and every app published by Ngo Bien.
What do users think recently?
Low confidence · 2 reviews analyzed
How did the latest release land?
What is the recent mood?
Recent user voice shows a thrilled sentiment. Users appreciate high measurement accuracy provides reliable data for users performing sound and hearing tests and zero cost barrier allows for immediate access to core diagnostic testing features.
Limited review volume (2 reviews). Sentiment analysis will deepen as more data lands.
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Sound Meter (Noise Detector)?
How's The Health & Fitness Market?
Market outlook for this category
Available very soon
The rivals identified
Nemeses(1)
This is the market-leading direct rival with high-frequency updates and a massive user base that defines the standard for mobile sound measurement.
Differentiators
- Offers professional-grade frequency analysis and spectrum graphs that exceed basic noise detection capabilities.
- Maintains a high release cadence with two updates in the last six months ensuring platform stability.
- Provides advanced calibration features that allow users to adjust for specific device microphone sensitivities.
Head to head
The target app must pivot toward a specific health-outcome niche to avoid a direct feature-war with this dominant, highly-resourced utility.
Contenders(1)
A highly credible, research-backed utility that serves as the gold standard for workplace safety compliance.
Differentiators
- Leverages institutional credibility from NIOSH standards to attract users requiring regulatory-compliant noise measurements.
- Prioritizes scientific accuracy and standardized reporting over the consumer-facing features found in general-purpose sound meters.
Same space(2)
Operates in the health-fitness category with a focus on ear-health diagnostics.
Differentiators
- Focuses on gamified ear-age diagnostics which provides a different engagement hook than standard noise meters.
- Operates with a lower update frequency, indicating a more static product lifecycle.
Shares the health-focused niche but specializes in audiometric testing rather than environmental noise monitoring.
Differentiators
- Specializes in generating detailed audiograms rather than measuring ambient environmental noise levels.
- Targets users specifically concerned with hearing loss progression rather than general noise pollution awareness.
New entrants(2)
A massive, high-growth competitor that dominates the sleep-health category through content-rich soundscapes.
Differentiators
- Utilizes a content-heavy subscription model that creates a significant barrier to entry for utility-focused apps.
- Integrates complex sound-mixing engines that transform the app from a simple tool into a lifestyle platform.
High-velocity release cadence suggests an aggressive expansion into the broader health-fitness soundscape.
Differentiators
- Aggressively targets the sleep-aid market by combining sound generation with noise-masking features.
- Maintains a high release frequency of five updates in six months to rapidly iterate on user feedback.
Compare Sound Meter (Noise Detector) against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Sound Meter (Noise Detector)
Strengths to defend, gaps to attack
Core Strengths
- High-accuracy diagnostic tools sustain organic install velocity
- Integrated hearing-test utility creates a health-monitoring focus
Critical Frictions
- Zero monetization gates limit revenue per user
- Limited frequency range capability restricts appeal to prosumers
Growth Levers
- Premium tier offering advanced diagnostic limits could capture power users
- B2B partnerships for workplace safety monitoring
Market Threats
- Decibel X's professional-grade spectrum analysis erodes market share
- BetterSleep's subscription model sets a higher engagement standard
What are the next best moves?
Launch premium tier with expanded frequency ranges because users request advanced diagnostic limits → increase revenue per user
Sentiment data shows high demand for expanded measurement ranges, indicating a willingness to pay for advanced diagnostics.
Trade-off: Pause the relaxation audio content updates — diagnostic utility has higher revenue potential than content expansion.
Audit ad-placement frequency because the app relies on ad-supported traffic → maintain retention
The current free-only model requires ad-inventory optimization to sustain the business without a subscription gate.
Trade-off: Same-quarter capacity available — no major lever displaced.
A counter-intuitive read
The app's lack of a subscription model is a strategic advantage for user acquisition, as it creates a low-friction entry point that competitors like BetterSleep cannot match.
Feature Gaps vs Competitors
- Professional-grade spectrum graphs (available in Decibel X)
- Advanced microphone calibration (available in Decibel X)
Key Takeaways
The app provides high-accuracy diagnostic tools that users value, but the lack of a premium tier leaves revenue potential on the table, so the PM should prioritize launching a paid diagnostic upgrade.
Where Is It Heading?
Stable
The health-utility market is consolidating around apps that offer both diagnostic depth and lifestyle content. Sound Meter remains stable but exposed, as the current feature set lacks the professional-grade tools required to defend against high-velocity competitors.
High measurement accuracy drives positive user sentiment, which provides a solid foundation for future premium tier adoption.
The lack of advanced diagnostic features forces power users toward professional rivals, which limits long-term retention of high-value segments.