Sound Level Analyzer vs AlmostSilent
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sound Level Analyzer
This app measures sound levels and provides advanced frequency analysis tools. It's useful for various applications, from ambient noise checks to audio system testing and live event analysis. Features include real-time spectrum analysis and FFT capabilities.
- Sound level measurement (Leq, Min, Max, Avg)
- Frequency weighting (A, C, Z)
- Time weighting (Fast, Slow)
- Real-time frequency spectrum analyzer (RTA)
- FFT analysis
- Calibration and measurement timer
- Snapshot saving
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"Sound Level Analyzer" is the standard sound level measurement app with sound frequency analysis tools. It is available for a wide variety of applications, such as measuring ambient noise in neighborhoods, testing audio systems, checking interior noise in vehicles, checking sound at live events, and much more. "Sound Level Analyzer" has additional analysis features, which are time graph, real-time frequency spectrum analyzer (RTA) and FFT analyzer. It can be used to analyze sound source characteristics. Features: # Measurement and Analysis functions Main (Leq): Sound level measurement (real-time display) - Sound level measurement (dB): Leq (equivalent noise level), Min (minimum value), Max (maximum value), Avg (time average equivalent noise level) - Frequency weighting correction characteristics: A (for noise level meter), C (for sound level measurement), Z (no correction) - Time weighting characteristics: Fast = 0.125 sec, Slow = 1.0 sec Power Spectrum (P.S.): View of frequency spectrum analysis (real time display) - Spectrum analyzer function: FFT analysis, 1/3-octave band response analysis. - FFT frequency range settings: 100Hz - 20kHz (FFT all) / 100Hz - 3kHz / 3k - 6kHz - Measured value display function in 1/3 oct band response analysis. (OctVal) - Power spectrum display function at the time of occurrence of Max. (Display Max) # Control functions - Calibration: level correction value setting, -20 to +20dB - Measurement timer: 1 minute / 5 minutes / 10 minutes / 15 minutes / 20 minutes / 30 minutes / 1 hours - Snapshot (Snap): Save measurement display with time stamp to Photos. Applications: - Live Sound - Environmental noise measurement - Installation of audio equipment - Tuning of audio equipment - Architectural acoustics - Broadcast - Device management Example of the noise level situation: - 130dB: Engine sound of Airplane - 110dB: Horn of Car - 100dB: Noise of passing train - 90dB: In loud factory - 80dB: In the train, Vacuum cleaner - 70dB: Noisy office, Noisy Street - 60dB: Quiet Car, Normal conversation - 50dB: Quiet office - 40dB: In the library, Quiet residential area - 30dB: Outskirts of midnight, Whisper - 20dB: Sounds of rubbing leaves Note: The first time the app accesses the built-in microphone and Photos after installation, the iOS system will ask you for permission to access them. If you have not enabled this setting, the application will not be able to access them due to iOS system privacy restrictions. Please enable the access permission in the iOS setting "Settings > Privacy & Security > Photos or Microphone". Please visit our iOS app support page for more information on this app.
AlmostSilent
This utility app offers a specialized slider for precise low-volume adjustments, providing finer control than the device's built-in volume buttons. It's designed to help users achieve quieter audio levels for their device's speaker, even below the standard minimum setting.
- Fine-tune low volume settings
- More precise than device buttons
- Adjust speaker volume
- Specialized slider interface
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This slider is specialized for setting a low volume. It has better operability than the control center. The volume buttons on the side of the device have large width steps, Even at the lowest setting, the sound is rather loud. You can set lower on this app. Caution. At very low volumes, the numbers may differ from how you actually feel. This app is designed to adjust the volume of the device's speaker. It may not work well in other ways. The volume slider displayed in this app is provided by the OS. Specifications regarding the volume slider are subject to Apple's policies.
Screenshots
Verdict
The clearest difference is price: AlmostSilent at Free against Sound Level Analyzer's $7.99. AlmostSilent also leads on rating (4.2 vs 3.5) and update cadence (monthly vs every 7 months). Sound Level Analyzer's advantage is ads (none vs shown) and review sentiment (83% vs 57%). On in-app purchases 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
AlmostSilent is free to download; Sound Level Analyzer costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AlmostSilent holds the better App Store score, 4.2 against 3.5. That said, the two scores are not equally well evidenced: AlmostSilent has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 83% of Sound Level Analyzer's written reviews are positive against 57% of AlmostSilent's, so the app with the better star average is not the one people write more warmly about.
Sound Level Analyzer ships an update every 7 months, AlmostSilent monthly. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.
| Parameter | Sound Level Analyzer | AlmostSilent |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 3.5 (2 ratings) | 4.2 (13 ratings) — better |
| Positive reviews | 83.3% of reviews — better | 57.1% of reviews |
| Number of ratings | 2 | 13 — better |
| Update frequency | Every 7 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.2 | 15.5 — better |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | TOON,LLC | Motonari Hibi |
Customer experience
Sound Level Analyzer
AlmostSilent
In-app purchases
Sound Level Analyzer
No in-app purchases
AlmostSilent
No in-app purchases
Questions
Is Sound Level Analyzer free?
Is AlmostSilent free?
Which has better reviews, Sound Level Analyzer or AlmostSilent?
Do Sound Level Analyzer or AlmostSilent have ads?
Which is updated more often, Sound Level Analyzer or AlmostSilent?
Other comparisons
