Comparison

Sound Level Analyzer vs iSense

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

"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.

About

iSense

Read full description

iSense measures the temperature, humidity, voltage and frequency changes, water-leakages and smoke in the environment. It consists of sensors and monitoring panel. User sets upper and lower limits to receive alarm with push notification, email and SMS.

Screenshots

Sound Level Analyzer4 screens
iSense4 screens

Verdict

The call

The clearest difference is price: iSense at Free against Sound Level Analyzer's $7.99. iSense also leads on update cadence (monthly vs every 7 months) and device support (3 vs 1). On ads and 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

CostPrice · In-app purchases · Ads · Monetization

iSense 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.

UpkeepUpdate frequency

Sound Level Analyzer ships an update every 7 months, iSense monthly. The most recent releases landed on September 18, 2026 and September 16, 2026 respectively.

Scorecard4 real differences · 6 level
Sound Level Analyzer versus iSense: the parameters behind the verdict, then further details
ParameterSound Level AnalyzeriSense
Price$7.99Free — better
Rating3.5 (2 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings2 — better—
Update frequencyEvery 7 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.211.0 — better
Further details — not scored
Size1 MB90 MB
Age rating4+4+
DeveloperTOON,LLCEDS

In-app purchases

None

Sound Level Analyzer

No in-app purchases

None

iSense

No in-app purchases

Questions

Is Sound Level Analyzer free?
Sound Level Analyzer costs $7.99, with no in-app purchases.
Is iSense free?
iSense is free to download, with no in-app purchases.
Do Sound Level Analyzer or iSense have ads?
Neither Sound Level Analyzer nor iSense shows ads.
Which is updated more often, Sound Level Analyzer or iSense?
Sound Level Analyzer ships an update every 7 months, and iSense monthly. Most recently, Sound Level Analyzer was updated on September 18, 2026 and iSense on September 16, 2026.

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