Comparison

Particle Detector 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

Particle Detector

This utility app transforms your iOS device into a wireless scanner for iBeacon™ and Eddystone beacons. It displays detailed information like UUID, Major ID, signal strength, and battery life for discovered beacons. The app can log beacon data even when running in the background.

Highlights
  • Wireless Bluetooth Low Energy scanner
  • Detects iBeacon™ and Eddystone beacons
  • Displays Major ID, Minor ID, and Signal Strength
  • Shows Eddystone beacon URL and battery life
  • Supports UUID filters for quick discovery
  • Background logging of beacon data
Features
Read full description

Particle Detector turns your iPhone, iPod Touch, or iPad into wireless, Bluetooth Low Energy scanner that may be used to find iBeacon™ and Eddystone beacons. Once discovered by UUID, Particle Detector displays Major ID, Minor ID, Signal Strength, and timestamp for last moment of discovery. New UUID filters may be added for quick discovery. Eddystone beacons in the display will show signal strength, calibrated Tx power, broadcast URL, and battery life (if supported by the beacon). Designed exclusively for iOS7 or greater, this app allows your iOS device to discover other iOS devices acting as iBeacon™ or custom hardware devices that support iBeacon™, including those available for purchase on our website. NOTE: Particle Detector will continue to log iBeacon ranging information, even while backgrounded. Continued use of GPS running in the background can dramatically decrease battery life. "iBeacon" is a trademark of Apple Inc., registered in the U.S. and other countries.

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

Particle Detector4 screens
Frequency Analyzer4 screens

Verdict

The call

The clearest difference is review sentiment: Particle Detector at 100% against Frequency Analyzer's 0%. Particle Detector also leads on in-app purchases (none vs 11) and device support (3 vs 1). Frequency Analyzer's advantage is rating (4.5 vs 4.0) and update cadence (every 8 days vs every 2 months). On price and 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

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

ReceptionRating · Positive reviews · Number of ratings

Frequency Analyzer holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Frequency Analyzer has 166 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of Particle Detector's written reviews are positive against 0% of Frequency Analyzer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Particle Detector ships an update every 2 months, Frequency Analyzer every 8 days. The most recent releases landed on June 7, 2026 and September 21, 2026 respectively.

Scorecard8 real differences · 2 level
Particle Detector versus Frequency Analyzer: the parameters behind the verdict, then further details
ParameterParticle DetectorFrequency Analyzer
PriceFreeFree
Rating4.0 (1 ratings)4.5 (166 ratings) — better
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings1166 — better
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS7.0 — better17.2
Further details — not scored
Size3 MB35 MB
Age rating4+4+
DeveloperKS TechnologiesManfred Kuegel

Customer experience

Particle Detector

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Frequency Analyzer

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

In-app purchases

None

Particle Detector

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 Particle Detector free?
Particle Detector is free to download, with no in-app purchases.
Is Frequency Analyzer free?
Frequency Analyzer is free to download, with in-app purchases available.
Which has better reviews, Particle Detector or Frequency Analyzer?
Frequency Analyzer is rated higher. Particle Detector averages 4.0 out of 5 from 1 ratings, while Frequency Analyzer averages 4.5 from 166 ratings.
Do Particle Detector or Frequency Analyzer have ads?
Neither Particle Detector nor Frequency Analyzer shows ads.
Which is updated more often, Particle Detector or Frequency Analyzer?
Particle Detector ships an update every 2 months, and Frequency Analyzer every 8 days. Most recently, Particle Detector was updated on June 7, 2026 and Frequency Analyzer on September 21, 2026.

Other comparisons