Comparison

iCSP vs Frequency Analyzer

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

Head to head
About

iCSP

Features
Read full description

Our new iCSP app allows BroadBEAM© maritime VSAT clients to check all vital statistics of their satellite link in real-time. With iCSP you can easily check your link-status, transmit & receive signal-strength, vessel position and traffic-statistics as well as your support tickets. You also have access to crucial performance and availability statistics of the BroadBEAM© network. iCSP is a great tool to assist you in operating and maintaining your BroadBEAM© VSAT link. Please note that you will need an active BroadBEAM© VSAT subscription to use iCSP.

About

Frequency Analyzer

Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.

Highlights
  • Real-time FFT analysis
  • Calibrated SPL measurements
  • 32-bit float audio recording
  • Synchronized video recording
  • Spectrogram and octave band analysis
  • Export WAV, CSV, images, and videos
Features
Read full description

Transform your device into a professional-grade audio analysis suite with industry-leading 32-bit float processing, precision calibration tools, and comprehensive visualization capabilities. PROFESSIONAL ACOUSTIC MEASUREMENT • Real-time FFT analysis with configurable window sizes up to 4096 points • Reference SPL measurement with calibrated sound pressure level monitoring • Professional microphone correction with frequency-specific calibration curves • Reference tone calibration for precise frequency measurements • Configurable time averaging (0-1000ms) for stable, accurate readings • Industry-standard weighting filters: dBA, dBC, dBZ, and linear magnitude • Multiple window functions: Hanning, Hamming, Blackman ADVANCED VISUALIZATION MODES • High-resolution spectrum analyzer with peak detection • Real-time waveform display • Professional spectrogram • Octave band analysis • Amplitude tracking over time • Total level monitoring with min/max/average statistics POWERFUL RECORDING & ANALYSIS • High-quality 32-bit float audio recording and playback • Synchronized video recording with audio analysis overlay • Event tracking system with timestamped notes • Playback synchronization with all recorded events and measurements • Location mapping for environmental noise surveys • Export capabilities: WAV audio, CSV data, high-resolution images and videos PRECISION DECIBEL MEASUREMENT • Calibrated SPL measurements with reference level adjustment • Real-time dB monitoring with peak hold functionality • Statistical analysis: Leq, Lmax • Configurable time averaging (0-1000ms) • Frequency-weighted noise exposure calculations • Exposure calculator for NIOSH and OSHA IDEAL FOR PROFESSIONALS • Acousticians and audio engineers • Environmental noise consultants • Musicians and sound designers • Room acoustics optimization • Industrial noise monitoring • Educational and research applications • Live sound reinforcement • Building acoustics assessment Download now and unlock the full spectrum of acoustic measurement capabilities. DISCLAIMER This is a consumer application designed for general audio analysis and educational purposes. It is not a certified measurement instrument and should not be used where legally compliant or certified measurements are required. For professional acoustic assessments requiring traceable calibration or regulatory compliance, we recommend using an external calibrated measurement microphone with certified sound level meters. EULA: https://frequency-analyzer.com/terms-and-conditions/

Screenshots

iCSP2 screens
Frequency Analyzer4 screens

Verdict

The call

The clearest difference is price: Frequency Analyzer at Free against iCSP's $0.99. Frequency Analyzer also leads on update cadence (every 8 days vs every 2 months). iCSP's advantage is in-app purchases (none vs 11) and device support (3 vs 1). On 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

CostPrice · In-app purchases · Ads · Monetization

Frequency Analyzer is free to download; iCSP costs $0.99 up front. Frequency Analyzer sells 11 in-app purchases, starting at $2.99 per 7 days. iCSP asks for nothing beyond the download.

UpkeepUpdate frequency

iCSP ships an update every 2 months, Frequency Analyzer every 8 days. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

Scorecard5 real differences · 5 level
iCSP versus Frequency Analyzer: the parameters behind the verdict, then further details
ParameteriCSPFrequency Analyzer
Price$0.99Free — better
Rating—4.5 (169 ratings) — better
Positive reviews—10.0% of reviews
Number of ratings—169 — better
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.2 — better17.2
Further details — not scored
Size10 MB35 MB
Age rating4+4+
DeveloperOmniAccess S.L.Manfred Kuegel

In-app purchases

None

iCSP

No in-app purchases

11 purchases

Frequency Analyzer

Subscriptions10
  • Frequency Analyzer Pro Weekly3 Days trial$2.997 Days
  • Frequency Analyzer Pro Monthly7 Days trial$3.991 Month
  • Frequency Analyzer Pro Monthly$3.991 Month
Show 7 more
  • Frequency Analyzer Pro Monthly7 Days trial$4.991 Month
  • Frequency Analyzer Pro Monthly$4.991 Month
  • Frequency Analyzer Pro Monthly3 Days trial$4.991 Month
  • Frequency Analyzer Pro Annual7 Days trial$29.991 Year
  • Frequency Analyzer Pro Annual7 Days trial$44.991 Year
  • Frequency Analyzer Pro Annual$44.991 Year
  • Frequency Analyzer Pro Annual3 Days trial$44.991 Year
One-time1
  • Pro access for lifetime$89.99

Questions

Is iCSP free?
iCSP costs $0.99, with no in-app purchases.
Is Frequency Analyzer free?
Frequency Analyzer is free to download, with in-app purchases available.
Do iCSP or Frequency Analyzer have ads?
Neither iCSP nor Frequency Analyzer shows ads.
Which is updated more often, iCSP or Frequency Analyzer?
iCSP ships an update every 2 months, and Frequency Analyzer every 8 days. Most recently, iCSP was updated on October 7, 2026 and Frequency Analyzer on October 13, 2026.

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