Noise Spectrum Logger vs Computer Science Converter
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
Computer Science Converter
This app facilitates quick conversions between various number systems including decimal, binary, hexadecimal, and octal. It also supports signed integer conversions, text encoding, IP address calculations, and subnetting tools. Perform bitwise operations like AND, OR, and XOR with ease.
- Decimal, Binary, Hexadecimal, Octal conversions
- Signed integer and Two's Complement conversions
- Text to Binary/Hexadecimal conversion
- IP Address and Subnetting calculations
- Bitwise operations (AND, OR, XOR, NOT)
- Identifies IP address class and Subnet IDs
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Easily and simultaneously convert between: Unsigned Conversions: - Decimal (dec) - Binary (bin) - Hexadecimal (hex) - Octal (Oct) Signed Conversions: - 16-Bit Integers - 32-Bit Integers - Binary (Two’s Complement) - Hexadecimal (Two’s Complement) Text: - String - Decimal - Binary (New) - Hexadecimal IP Addresses: - Binary, and Decimal Conversions Subnetting: - Create and Find subnets - Identifies IP address class - Shows Subnet IDs for each subnet in binary and decimal - Shows Broadcast ID and host range for each subnet ID - Shows the total number of bits stolen, and the total number of hosts Calculate Bitwise Operations: - AND - OR - XOR - NOT - LEFT SHIFT - RIGHT SHIFT Good for computer science related tasks. - Networking - Assembly Language - Language Processing - Operating Systems - etc.
Screenshots
Verdict
The clearest difference is rating: Noise Spectrum Logger at 5.0 against Computer Science Converter's 3.8. Computer Science Converter's advantage is in-app purchases (none vs 1) and ratings volume (10 vs 1). On price, update cadence, 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. Computer Science Converter asks for nothing beyond the download.
Noise Spectrum Logger holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Computer Science Converter has 10 ratings behind it against 1, so its average is the more settled of the two.
Noise Spectrum Logger ships an update every 10 months, Computer Science Converter every 12 months. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.
| Parameter | Noise Spectrum Logger | Computer Science Converter |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.8 (10 ratings) |
| Positive reviews | — | 85.7% of reviews |
| Number of ratings | 1 | 10 — better |
| Update frequency | Every 10 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.5 | 14.5 — better |
| Further details — not scored | ||
| Size | 5 MB | 12 MB |
| Age rating | 12+ | 4+ |
| Developer | Yukiko Iwai | Andrew Rotert |
Customer experience
Noise Spectrum Logger
Computer Science Converter
In-app purchases
Noise Spectrum Logger
- Remove Ads$3.99
Computer Science Converter
No in-app purchases
Questions
Is Noise Spectrum Logger free?
Is Computer Science Converter free?
Which has better reviews, Noise Spectrum Logger or Computer Science Converter?
Do Noise Spectrum Logger or Computer Science Converter have ads?
Which is updated more often, Noise Spectrum Logger or Computer Science Converter?
Other comparisons
