Noise Spectrum Logger vs Danley Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Noise Spectrum Logger
Visualize sound frequencies in real-time with a dynamic spectrum display. Log and export audio data for analysis, with options for smoothing and background processing. Access all features offline.
- Real-time spectrum display (20-20000Hz)
- Zoomable spectrum view
- Maximum value highlighting
- Spectrum smoothing options (Mean/RMS)
- Logging and CSV export
- Background processing
- Offline functionality
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1. DESPLAY The power spectrum of sound is displayed in the range of 20 - 20000Hz. You can zoom in/out the spectrum by pinching in/out smoothly. Also landscape orientation is supported. 2. USEFUL While "hold" switch is ON, the maximum values are displayed in red color. You can select "Mean" or "RMS" as the way of smoothing the spectrum out. 3. LOGGING By sliding "log" switch, the logging mode is started. To choose a past log from "History" tab, you can pull it from iPhone via email as a CSV file. The CSV file can be edited with Excel etc. 4. AVAILABLE Without cellular data service, the full functions are available. 5. BACKGROUND PROCESSING You can use the logging function even when iPhone in your pocket. 6. TECHNICAL NOTE Sample rate: 44.1kHz Bit depth: 32bit float FFT window function: Blackman FFT samples: 8192
Danley Tools
This app provides essential calculators and reference materials for audio engineering professionals and enthusiasts. It offers tools to assist with various calculations needed in sound system design and analysis.
- Audio engineering calculators
- Reference materials
- Sound system design tools
- Analysis assistance
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Danley calculators and reference
Screenshots
Verdict
The clearest difference is rating: Noise Spectrum Logger at 5.0 against Danley Tools's 4.0. Noise Spectrum Logger also leads on update cadence (every 10 months vs every 36 months) and iOS requirement (15.5 vs 17.0). Danley Tools's advantage is in-app purchases (none vs 1). On price, ratings volume, ads and monetization model 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. Noise Spectrum Logger sells 1 one-off in-app purchase. Danley Tools asks for nothing beyond the download.
Noise Spectrum Logger holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Noise Spectrum Logger ships an update every 10 months, Danley Tools every 36 months. Both last shipped on October 7, 2026.
| Parameter | Noise Spectrum Logger | Danley Tools |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 10 months — better | Every 36 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 7 MB |
| Age rating | 12+ | 4+ |
| Developer | Yukiko Iwai | sebastian rivas |
Customer experience
Noise Spectrum Logger
Danley Tools
In-app purchases
Noise Spectrum Logger
- Remove Ads$3.99
Danley Tools
No in-app purchases
Questions
Is Noise Spectrum Logger free?
Is Danley Tools free?
Which has better reviews, Noise Spectrum Logger or Danley Tools?
Do Noise Spectrum Logger or Danley Tools have ads?
Which is updated more often, Noise Spectrum Logger or Danley Tools?
Other comparisons
