Spectrolite vs Decibel Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spectrolite
This app visualizes sound in real-time using various spectrogram types. Explore detailed audio data with intuitive touch controls and adjustable parameters. An optional purchase unlocks advanced measurement tools.
- Real-time spectrogram visualization
- Constant-Q, linear, and mel frequency scales
- Full human hearing frequency range
- Intuitive touch panning and zooming
- Adjustable gain, Q, and other parameters
- Pro version: grids, scales, spectrum view, tap-to-measure
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Spectrolite visualizes sound as spectrograms in real time. Spectrolite supports constant-Q spectrograms, which use a logarithmic frequency scale for a display where musical notes are evenly spaced. Spectrograms based on linear and mel frequency scales are also supported. The display covers the full frequency range of human hearing. Intuitive touch panning and zooming lets you dive in and explore the spectrograms in detail. Gain, Q, and other parameters can be adjusted in real time and instantly apply to the display of past signals as well as future ones. The Pro in-app purchase adds grids and scales for time, frequency, and amplitude, as well as a spectrum view and a tap-to-measure function. This expands Spectrolite into an audio measurement tool that you can use to measure frequencies, musical pitches, amplitudes, and durations.
Decibel Meter
This tool transforms your iPhone into a professional sound level meter, measuring decibels and analyzing sound frequencies. It helps identify harmful noise levels to protect your hearing and health, offering detailed insights and measurement history.
- Professional sound level meter
- Sound frequency analysis
- Noise dosimeter with standards
- Accurate sound pressure measurements
- Save and export measurements
- Advanced measurement charts
- MIN/MAX/AVG data
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Decibel Meter is a professional tool to measure decibels & analyze sound frequency. This app turns your iPhone into a professional sound level meter, detects harmful noises and helps protect your health & hearing. Measure the noise level around you and protect yourself in case of excessive volume. Main Features: * A noise dosimeter will help you understand how noisy it is at your workplace or home. * Dosimeter with NIOSH, OSHA standards * Accurate sound pressure measurements * Various types of measurements: dBa, dBc, dBz * Save measurements to the database right on your iPhone * Get MIN / MAX / AVG information for your measurements * Export measurements * Advanced charts show you the deep details of your measurements Is your job high in noise? Do you want to find out if the neighbours are not exceeding the permissible volume values? Do you want to monitor the health of your ears? This means that our application can serve you as a faithful assistant. Are you ready to give it a go? Subscription information about pricing and terms: The app is based on the freemium model: it's free to use. However, you can subscribe for unlimited access to all features with unlimited usage. I provide different options. The longer period – the profitable subscription. Privacy Policy: https://sites.google.com/view/richapps/privacy-policy Terms of Use: https://sites.google.com/view/richapps/terms-of-use
Screenshots
Verdict
The clearest difference is rating: Spectrolite at 4.8 against Decibel Meter's 3.5. Spectrolite also leads on review sentiment (83% vs 50%). On price, ratings volume, update cadence and ads 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. Spectrolite sells 1 one-off in-app purchase and Decibel Meter sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Spectrolite holds the better App Store score, 4.8 against 3.5. Both are backed by a comparable volume of ratings — 51 and 54 respectively. Written reviews point the same way: 83% of Spectrolite's written reviews are positive against 50% of Decibel Meter's.
Spectrolite ships an update every 8 months, Decibel Meter every 11 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.
| Parameter | Spectrolite | Decibel Meter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (51 ratings) — better | 3.5 (54 ratings) |
| Positive reviews | 83.3% of reviews — better | 50.0% of reviews |
| Number of ratings | 51 | 54 — better |
| Update frequency | Every 8 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Waxing Wave | Rychard Matskevich |
Customer experience
Spectrolite
Decibel Meter
In-app purchases
Spectrolite
- Pro$4.99
Decibel Meter
- Decibel Meter Premium Weekly3 Days trial$3.997 Days
- Noise Spectrum Detector VIP3 Days trial$8.991 Month
- Noise Frequency Checker VIP$19.993 Months
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- Sound Level Analyzer dB VIP$29.991 Year
Questions
Is Spectrolite free?
Is Decibel Meter free?
Which has better reviews, Spectrolite or Decibel Meter?
Do Spectrolite or Decibel Meter have ads?
Which is updated more often, Spectrolite or Decibel Meter?
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