dB Meter vs FlashScan
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
dB Meter
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Quietly is a simple and accurate dB meter designed to help you measure environmental noise levels using your iPhone. Whether you want to check room noise, traffic sound, workplace levels, or background noise, Quietly turns your phone into a reliable noise level meter with real-time feedback. What Quietly does - Measure sound levels in decibels (dB) - Works as a real-time noise meter and noise decibel meter - Shows live, min, average, and max noise levels - Clear visual indicator to understand noise intensity - Helps you measure decibels instantly Frequency Analyzer - Built-in frequency analyzer to understand sound composition - See low, mid, and high frequency noise in real time - Identify dominant sound sources easily Noise History & Alerts - Save noise readings for later reference - View past measurements with time and level - Set a noise alert when sound crosses a chosen dB level Designed for clarity - Clean, modern interface - Works fully offline - No account or setup required Measurements are approximate and device-dependent. It is not intended for professional or medical measurement. One-Time Purchase: Quietly Pro is available as a one-time purchase for lifetime access, which is required to access all features. Download Quietly and stay aware of the noise around you. Terms & Privacy: https://trapezoidal-aries-fa4.notion.site/Quietly-Terms-Privacy-2d4093498a858095a2fcf6143f172100
FlashScan
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FlashScan is a privacy-first document scanner for turning paper into clean, searchable files. Automatically detect document edges, correct perspective, reduce shadows and glare, and export PDF or JPEG. On-device OCR recognizes multiple languages, supports full-text search, extracts tables, and helps organize receipts, contracts, notes, IDs, whiteboards, and books. Receipt details can be collected in a monthly ledger, while sensitive information can be permanently redacted before sharing. Document intelligence runs on your device. Your content is not uploaded to us, and the app contains no advertising or analytics SDKs. Subscriptions and optional iCloud sync are handled by Apple services. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: FlashScan at daily against dB Meter's every 11 days. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. dB Meter sells 1 one-off in-app purchase and FlashScan sells 2 in-app purchases, starting at $0.29 per month. Whichever you choose, the download price is not the number that matters.
dB Meter ships an update every 11 days, FlashScan daily. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | dB Meter | FlashScan |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days | Daily โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 5 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Swapnil Jain | Beijing Pengcheng Technology Co., Ltd. |
In-app purchases
dB Meter
- Quietly Premium$5.99
FlashScan
- Pro Monthly$0.291 Month
- Pro Yearly$1.991 Year








