--- title: "Wonder Decibel - Sound Test - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Wonder Decibel is a professional iOS sound meter that combines high-precision acoustic measurement with smart analytics, making sound visible, measurable, and understandable. Whether for daily noise m" --- # Wonder Decibel - Sound Test — United States > Decibel Meter ![Wonder Decibel App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/17/a7/d7/17a7d743-cb54-c95e-a376-b4f7c4198962/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [小利 薛](https://apptail.io/developer/developer-RdJc) **Category:** Utilities **Rating:** 5.0/5 (2 ratings) **Price:** Free **Bundle ID:** com.lucky.decibel **Store:** Apple App Store **Country:** United States **Version:** 3.0 (released 2026-08-24) **Original Release:** 2026-01-10 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6757120222) **AppTail Page:** [https://apptail.io/app/wonder-decibel-sound-test-aEuy/united-states](https://apptail.io/app/wonder-decibel-sound-test-aEuy/united-states) ## Wonder Decibel Description Wonder Decibel is a professional iOS sound meter that combines high-precision acoustic measurement with smart analytics, making sound visible, measurable, and understandable. Whether for daily noise monitoring, acoustic research, sound field debugging, or education, it delivers intuitive operation and reliable data to satisfy your curiosity. --- **Professional Decibel Measurement with Three Flexible Modes** Wonder Decibel offers three data collection methods: real-time monitoring, photo-based measurement, and video-based measurement, covering a wide range of use cases. The real-time mode is ideal for instant noise assessment, the photo mode freezes measurement results within captured images, and the video mode supports extended continuous recording for later review and verification. Whether dealing with sudden high-frequency spikes or persistent ambient background noise, you can quickly obtain accurate and dependable decibel readings. **Multi-Result Correlation Analysis to Uncover Sound Variation Patterns** By correlating and comparing measurement data from multiple sessions or different time points, the system automatically generates trend curves and fluctuation charts that clearly illustrate how sound intensity evolves over time. With multi-dimensional analytical tools including peak markings, average references, and time-segmented comparisons, you can extract critical insights from complex datasets and gain a deeper understanding of the underlying logic and patterns governing acoustic environments. **Automated Inspection Reports with One-Tap Document Generation** Based on collected measurement data, the system automatically produces professionally structured and visually clear inspection reports, covering measurement overviews, data charts, peak statistics, and trend analyses. Reports can be exported in standard formats for local archiving, email distribution, or print output, meeting the documentation requirements of formal scenarios such as project acceptance, environmental assessments, and academic record-keeping. **AR-Enhanced Sound Hotspot Recognition** Leveraging the augmented reality capabilities of iOS devices, Wonder Decibel visualizes sound decibel hotspots by overlaying them onto the real-world environment through the device screen. With a simple movement of your device, you can intuitively observe the spatial distribution of sound energy and quickly pinpoint noise-concentrated areas or anomalous sound sources. This feature proves especially valuable in scenarios such as conference room acoustic inspections, equipment noise diagnostics, and indoor acoustic layout optimization where spatial positioning is essential. **Quiet Map – Location-Based Sound Detection** Powered by GPS positioning, Wonder Decibel allows you to mark and record sound decibel values at different locations directly on a real map, building your personal sound map. Whether you are documenting noise distribution across urban neighborhoods, seeking out quiet corners within your daily surroundings, or tracking acoustic environment changes in specific areas, Quiet Map binds sound data with geographic information, transforming every outing into a meaningful acoustic data collection journey. --- **Subscription Service** When you subscribe to the "VIP Subscription" service, you will enjoy the following benefits: 1. Unrestricted access to all features. 2. AI content recommendations based on usage habits. Payment for subscriptions is straightforward—the user's iTunes account is credited immediately after confirmation of purchase and payment. Please note that the Apple iTunes account will be automatically debited 24 hours prior to expiration. Upon successful deduction, the subscription term will be extended by one subscription cycle. User Agreement: Privacy Agreement: ## Wonder Decibel Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/4e/68/78/4e687879-f491-ad55-b38b-4c92e135fd2f/iphone3.png/1284x2778.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e3/3a/ce/e33ace1a-7e45-523e-191b-9aceb82d11c8/iphone2.png/1284x2778.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/1b/de/5f/1bde5f78-b5f2-a367-489b-aba15edf254e/iphone4.png/1284x2778.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/e9/14/de/e914de4d-153f-dc2f-fcb6-3799c70de5b6/iphone5.png/1284x2778.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/27/5f/7d/275f7d05-a0bc-a6d0-7f68-c25e4e6aa08c/iphone1.png/1284x2778.png) ## Wonder Decibel Rating Breakdown in United States - 5 stars: 2 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Wonder Decibel Reviews in United States ### ***** "Very stable app" I've tried a few other sound meters and they often crash or freeze. Wonder Decibel has been rock solid on my iPhone. It's lightweight and doesn't seem to drain the battery much. -- Schwarz Jann, 2026-02-28 ### ***** "Straightforward and easy" No steep learning curve here. You just open the app and it starts measuring. I love that it gives you a reference, so you actually understand what the numbers mean. -- Kimbra Martinez, 2026-02-27 ### ***** "Beautiful and functional" Most decibel apps look like they were designed in 2010, but Wonder Decibel is sleek and modern. It fits perfectly with the iOS aesthetic. I love the minimalist approach—it just works. -- LaurieGush, 2026-02-26 ### ***** "Surprisingly accurate!" I cọmpared this with a professional handheld decibel meter I use for work, and the results were remarkably close. The UI is clean, and there are no annoying ads popping up every second. Definitely my go-to sound meter now. -- Lynette Bari, 2026-02-24 ### ***** "Helpful for my sleep environment" I live in a noisy neighborhood and wanted to see how loud it actually gets at night. This app is perfect for logging noise levels. It’s helped me realize when I need to turn on my white noise machine. Very handy tool. -- emeraldcheathami, 2026-02-11 [View all Wonder Decibel reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Wonder Decibel In-App Purchases | Item | Price | |------|-------| | VIP Subscription Service | $2.99 | ## Wonder Decibel Discovered Keywords - wonder decibel - sound test ## Wonder Decibel Available In - [United States](https://apptail.io/app/wonder-decibel-sound-test-aEuy/united-states) - [United Kingdom](https://apptail.io/app/wonder-decibel-sound-test-aEuy/united-kingdom) - [Honduras](https://apptail.io/app/wonder-decibel-sound-test-aEuy/honduras) - [Canada](https://apptail.io/app/wonder-decibel-sound-test-aEuy/canada) - [Russia](https://apptail.io/app/wonder-decibel-sound-test-aEuy/russia) - [Sweden](https://apptail.io/app/wonder-decibel-sound-test-aEuy/sweden) - [Panama](https://apptail.io/app/wonder-decibel-sound-test-aEuy/panama) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*