Decibel Meter vs NoiseLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Decibel Meter
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Decibel Meter - dB Comparison is a simple and practical sound level meter for measuring the noise around you in real time. Using your device’s microphone, the app estimates the current sound level and displays it in decibels, helping you better understand how loud your surroundings are. Use it to check everyday environments such as your home, office, classroom, workshop, street, or event space. Whether you want to compare noise levels, monitor a room, or get a quick sense of how loud a place is, Decibel Meter - dB Comparison gives you a clear and easy-to-read measurement. Key Features - Real-time sound level measurement - Decibel display using your device microphone - Simple, focused interface - Useful for everyday noise checks - No account required - Audio is processed on your device - No audio recording, uploads, or sharing Privacy Decibel Meter - dB Comparison is designed with privacy in mind. The microphone is used only to estimate nearby sound levels in real time. Audio is not recorded, stored, uploaded, or shared.
NoiseLog
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NoiseLog turns your phone into a fast, accurate sound level meter. Point it anywhere and read the decibels in real time — then log, chart, and understand the noise around you. MEASURE • Live dB gauge with a smooth, readable needle • Min, average, max and peak for every session • Calibrate to match a reference for better accuracy LOG & ANALYZE • Save measurements with one tap (or auto-save on stop) • Professional time-based charts — min, avg, max, peak • Export any measurement to CSV and share STAY SAFE • Loud-noise alerts with a custom threshold • NIOSH safe-exposure guidance at a glance • A clear reference for what every decibel level means PRIVATE BY DESIGN Audio is analyzed on-device in real time. It is never recorded, stored, or sent anywhere. ONE-TIME PRO — NO SUBSCRIPTION Unlock unlimited history, alerts, detailed charts, and CSV export with a single purchase. Pay once, own it forever. Note: a phone microphone is not a certified sound meter. Readings are estimates — use them as a guide, not for compliance.
Screenshots
Verdict
The clearest difference is in-app purchases: Decibel Meter at none against NoiseLog's 1. On price, ads, device support and iOS requirement 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. NoiseLog sells 1 one-off in-app purchase. Decibel Meter asks for nothing beyond the download.
| Parameter | Decibel Meter | NoiseLog |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 3 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | MIKE SPENGLER | Himas Rafeek |
In-app purchases
Decibel Meter
No in-app purchases
NoiseLog
- NoiseLog Pro$6.99









