Scan2Ring vs Decibel Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scan2Ring
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Scan2Ring allows you to create QR code bells which can be rung by scanning QR codes followed by tapping on the ring button on a webpage. Simply create one or more bells and print or share the related QR codes. You can also combine multiple bells into a bell group, so a single QR code lets you choose which bell to ring — handy for cutting down on clutter when you'd otherwise need a separate code on display for each one. You can have your bells on multiple devices and you can add your family members, housemates, colleagues, etc. to your bells so that they can also hear the bells on their devices. You or your associates can interact with a bell ringer with or without video. A person ringing a bell (scanning a QR code) does not need the app – they can use their usual means for scanning a QR code, e.g., camera app. Key features: - Permanent free plan available - QR code video bells - Bell groups (one QR code reveals multiple bells) - Hygienic - Environmentally sustainable - Easy installation - No extra hardware - No power sockets - No batteries - No cables - No drilling Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Decibel Meter
Measure and understand ambient noise levels with this intuitive tool. It provides instant decibel readings, logs historical data with notes, and offers visual and auditory representations of sound. Ideal for ensuring safety, monitoring environments, or protecting hearing.
- Instant dB readings
- Historical data logging
- Add personal notes to recordings
- Simple and intuitive interface
- Real-time audio analysis
- Visual and auditory sound representation
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Discover. Measure. Understand. Dive into the world of sound with our ultimate tool for monitoring noise levels in any environment. Whether you're a professional needing to ensure a safe workplace or someone curious about the sounds that surround you, our app is designed to deliver accurate decibel readings with ease. Key Features: * Instant dB Readings: Open the app and immediately start measuring noise levels around you. * Historical Data Log: Tap to save current, minimum, and maximum dB levels with time and date stamps for future reference. * Add Personal Notes: Jot down details or context for each recording, making your data log both comprehensive and meaningful. * Simple and Intuitive: A clean, user-friendly interface makes sound monitoring accessible to everyone. * Privacy-Conscious: No personal data is recorded or stored, ensuring your privacy remains intact. In-Depth Noise Analysis Experience real-time audio analysis with a visual and auditory representation of the current noise level. "Record dB" with a single tap and keep a detailed log of noise levels over time. Perfect for: * Ensuring safe noise levels in work or public spaces * Monitoring environmental sound for research or awareness * Protecting your hearing by understanding exposure Designed for Everyday Use Our app is easy to navigate and provides instant insight into the noise around you. Use it for: * Assessing classroom noise levels for educators * Understanding sound exposure at live events * Checking the effectiveness of soundproofing efforts Ready to Embrace Silence? Join the community of users who have taken control of their auditory environments. Download our app today and start your journey to sound awareness and wellness. Privacy policy: https://labolab.net/PrivacyPolicy_NoiseDetectorApp.html Terms of use: https://labolab.net/TermsOfUse_NoiseDetectorApp.html
Screenshots
Verdict
The clearest difference is update cadence: Decibel Meter at every 3 weeks against Scan2Ring's every 2 months. Decibel Meter 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. Scan2Ring sells 8 in-app purchases, starting at $0.99 per year and Decibel Meter sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Scan2Ring ships an update every 2 months, Decibel Meter every 3 weeks. The most recent releases landed on September 16, 2026 and September 15, 2026 respectively.
| Parameter | Scan2Ring | Decibel Meter |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (10 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 10 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | SCAN2RING LIMITED | Bustgrow Ltd |
In-app purchases
Scan2Ring
- Plan 1-4$0.991 Year
- Plan 3-7$2.991 Year
- Plan 5-10$4.991 Year
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- Plan 10-15$9.991 Year
- 10 video tokens$0.99
- 20 video tokens$1.79
- 40 video tokens$2.99
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- 100 video tokens$6.49
Decibel Meter
- Premium Access3 Days trial$4.991 Month
- Premium Access7 Days trial$39.991 Year









