Qfind vs Decibel Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Qfind
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1.通过手机蓝牙ble 4.0，连接硬件设备。 2.实现手机查找硬件设备，和设备查找手机，和提示音。 3.断开连接设备报警。 4.设置头像icon 和改名字。
Decibel Detector
This app provides real-time environmental noise monitoring and data tracking. It offers smart alerts for custom noise thresholds and generates professional PDF reports. Adaptable to various scenarios, it helps users understand acoustic data and identify sound sources.
- Real-time decibel monitoring
- Historical data tracking
- Customizable smart alerts
- Multi-scenario adaptation
- Professional PDF reporting
- FFT spectrum analysis
- Environmental noise classification
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Decibel Detector - Your Portable Environmental Noise Lab! Real-time Monitoring: Continuously track environmental decibel levels 24/7, with support for 1-second refresh rates. Data Tracking: Automatically save historical records and view acoustic trends by day/week/month. Smart Alerts: Set custom noise thresholds and receive instant push notifications when levels are exceeded. Multi-Scenario Adaptation: Switch seamlessly between preset modes for classrooms, offices, construction sites, concerts, and more. Professional Reporting: Generate PDF inspection reports, with support for data export and comparative analysis. Powered by FFT spectrum analysis technology, the app is compatible with smartphones and tablets. It features an environmental noise classification database capable of identifying common sound sources such as traffic noise and industrial machinery. With an intuitive dashboard and dynamic waveform display, complex acoustic data becomes easy to understand. Whether you're an occupational health and safety professional conducting compliance monitoring or a general user seeking a more comfortable living environment, this app delivers reliable data support. Continuous background monitoring is now available, so you never miss critical acoustic data. Download now and start your Quiet Protection Plan!
Screenshots
Verdict
The clearest difference is update cadence: Qfind at every 10 days against Decibel Detector's every 5 months. Qfind also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Qfind ships an update every 10 days, Decibel Detector every 5 months. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.
| Parameter | Qfind | Decibel Detector |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 10 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 18 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | 标 何 | 北京泰燊信息技术有限公司 |
In-app purchases
Qfind
No in-app purchases
Decibel Detector
No in-app purchases
