Comparison

Frequency Analyzer vs Feedback Finder Pro

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

Head to head
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/

About

Feedback Finder Pro

This utility app helps live sound professionals and musicians instantly detect problematic feedback frequencies in real-time. It features a visual spectrum analyzer, smart alerts, and customizable settings for optimal performance.

Highlights
  • Real-time frequency detection
  • Visual spectrum analyzer
  • Smart feedback alerts
  • Configurable sensitivity
  • Customizable settings
  • Dark and light mode
Features
Read full description

Feedback Finder Pro is the essential tool for anyone working with live sound. Instantly identify feedback frequencies before they become a problem. REAL-TIME FREQUENCY DETECTION • Precise FFT-based analysis identifies feedback frequencies from 20Hz to 20kHz • Large, easy-to-read frequency display shows the dominant frequency in Hz • Visual spectrum analyzer displays all frequencies at a glance • Top 3 peak frequencies shown with magnitude levels SMART FEEDBACK ALERTS • Configurable sensitivity from instant detection to sustained monitoring • Visual alerts when feedback is detected • Sustained frequency tracking prevents false positives CUSTOMIZABLE SETTINGS • Adjustable refresh rate for battery optimization • Multiple spectrum range presets (Full, Low-Mid, Mid-High, Feedback range, Sub, High) • Dark and light mode support PERFECT FOR: • Live sound engineers • Musicians and bands • Worship teams • Event technicians • Anyone working with PA systems

Screenshots

Frequency Analyzer4 screens
Feedback Finder Pro3 screens

Verdict

The call

The clearest difference is review sentiment: Feedback Finder Pro at 100% against Frequency Analyzer's 0%. Feedback Finder Pro also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 11). Frequency Analyzer's advantage is ratings volume (166 vs 2). On price, ads, device support and iOS requirement 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

Both are free to download. Frequency Analyzer sells 11 in-app purchases, starting at $2.99 per 7 days. Feedback Finder Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Feedback Finder Pro holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Frequency Analyzer has 166 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Frequency Analyzer's written reviews are positive against 100% of Feedback Finder Pro's.

Scorecard5 real differences · 5 level
Frequency Analyzer versus Feedback Finder Pro: the parameters behind the verdict, then further details
ParameterFrequency AnalyzerFeedback Finder Pro
PriceFreeFree
Rating4.5 (166 ratings)5.0 (2 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings166 — better2
Update frequencyEvery 8 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPad — better
Requires iOS17.217.0 — better
Further details — not scored
Size35 MB3 MB
Age rating4+4+
DeveloperManfred KuegelVince Becquiot

Customer experience

Frequency Analyzer

All ratings166 ratings
Positive88.0%
Neutral3.6%
Negative8.4%
Written reviews9 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Feedback Finder Pro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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
None

Feedback Finder Pro

No in-app purchases

Questions

Is Frequency Analyzer free?
Frequency Analyzer is free to download, with in-app purchases available.
Is Feedback Finder Pro free?
Feedback Finder Pro is free to download, with no in-app purchases.
Which has better reviews, Frequency Analyzer or Feedback Finder Pro?
Feedback Finder Pro is rated higher. Frequency Analyzer averages 4.5 out of 5 from 166 ratings, while Feedback Finder Pro averages 5.0 from 2 ratings.
Do Frequency Analyzer or Feedback Finder Pro have ads?
Neither Frequency Analyzer nor Feedback Finder Pro shows ads.

Other comparisons