Comparison

Audio Frequency Analyzer vs BPO Assistant 2020

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

Head to head
About

Audio Frequency Analyzer

This real-time audio analyzer measures and evaluates sound environments with 1/3 octave band frequency response and FFT analysis. It supports calibration for high accuracy and is suitable for various audio testing and tuning applications.

Highlights
  • Real-time frequency spectrum response measurement (1/3 octave, 30 bands)
  • FFT Analyzer
  • Observation frequency range: 20 - 23000 Hz
  • Calibration function for high accuracy
  • Supports built-in and external microphones
  • Snapshot and averaging functions
Read full description

"Audio Frequency Analyzer" is a powerful real-time audio analyzer (RTA) app for iPhone. With its simple operation, you can easily measure and evaluate your sound environment. This app measures the frequency response in 30 split band scale of 1/3 octave in real time. It can also display the FFT analysis results. It supports calibration for 1/3-octave bands. By adjusting the characteristics to match not only the built-in microphone but also your external microphone, it achieves high measurement accuracy. "Audio Frequency Analyzer" can be used for various applications, including sound room tuning, speaker settings, audio equipment testing, stage setup measurement, sound mixing environment evaluation and noise environment investigation. Features: - Frequency spectrum response measurement of 1/3 octave unit, 30 bands. (OCT) - FFT Analyzer (FFT) - Observation frequency range: 20 - 23000 Hz - Logarithmic amplitude display. - Touch-scroll function to adjust visible amplitude ranges. - Display the measured value of 1/3 oct bands at OCT mode. (dB@OCT) - Function to change the graph slope at FFT mode. (Slope): -3dB/oct (less than 1kHz), +3dB/oct (1kHz or higher) - Peak hold function. (Hold) - Average display function. (Avg): Time linear averaging. Fast-2.56sec, Slow-12.8 sec - Display response control. (Fast/Slow) - Reset of Measurement display position. (Scroll) - Snapshot of Measurement display. (Snap) - Calibration function in OCT mode. (Calibrate): 1/3 octave band offset and total offset setting. - Supports built-in microphone, headset microphone, and external digital audio connection. Note: The first time you access your microphone and photos after installing the app, the iOS system will ask you for permission to access them. If you have not enabled this setting, the app 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 about this app.

About

BPO Assistant 2020

This app helps field service professionals manage work orders, track property details, and document their progress. It allows users to process orders, date-stamp photos, add notes, and view important information like fees and access codes. The app also provides mapping for routes to job sites.

Highlights
  • Manage active work orders
  • Process work orders
  • Date stamp photos
  • Receive work order alerts
  • Add text notes
  • Attach photos from device or camera
  • View fee and order requirements
  • Route mapping to property
Features
Read full description

Features of this app include: * View Manage "Active Work Orders" * Process Work Orders * Date stamp photos as uploaded to website from app * Receive Work Order Alerts * Mark photos (work order) completed from the field * View and Add Text Notes * Attach Picture from Device Albums * Attach Photos from the Device Camera * View fee paid to you for order * Order requirements * View access information/lock box code * Mapping of route to property from your location

Screenshots

Audio Frequency Analyzer4 screens
BPO Assistant 20203 screens

Verdict

The call

The clearest difference is price: BPO Assistant 2020 at Free against Audio Frequency Analyzer's $9.99. BPO Assistant 2020 also leads on rating (5.0 vs 3.7) and update cadence (every 3 months vs every 8 months). Audio Frequency Analyzer's advantage is ratings volume (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

BPO Assistant 2020 is free to download; Audio Frequency Analyzer costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BPO Assistant 2020 holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Audio Frequency Analyzer ships an update every 8 months, BPO Assistant 2020 every 3 months. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.

Scorecard7 real differences · 3 level
Audio Frequency Analyzer versus BPO Assistant 2020: the parameters behind the verdict, then further details
ParameterAudio Frequency AnalyzerBPO Assistant 2020
Price$9.99Free — better
Rating3.7 (3 ratings)5.0 (1 ratings) — better
Positive reviews60.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 8 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.215.1 — better
Further details — not scored
Size0 MB26 MB
Age rating4+17+
DeveloperTOON,LLCTrackMyForeclosures

Customer experience

Audio Frequency Analyzer

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews10 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

BPO Assistant 2020

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Audio Frequency Analyzer

No in-app purchases

None

BPO Assistant 2020

No in-app purchases

Questions

Is Audio Frequency Analyzer free?
Audio Frequency Analyzer costs $9.99, with no in-app purchases.
Is BPO Assistant 2020 free?
BPO Assistant 2020 is free to download, with no in-app purchases.
Which has better reviews, Audio Frequency Analyzer or BPO Assistant 2020?
BPO Assistant 2020 is rated higher. Audio Frequency Analyzer averages 3.7 out of 5 from 3 ratings, while BPO Assistant 2020 averages 5.0 from 1 ratings.
Do Audio Frequency Analyzer or BPO Assistant 2020 have ads?
Neither Audio Frequency Analyzer nor BPO Assistant 2020 shows ads.
Which is updated more often, Audio Frequency Analyzer or BPO Assistant 2020?
Audio Frequency Analyzer ships an update every 8 months, and BPO Assistant 2020 every 3 months. Most recently, Audio Frequency Analyzer was updated on October 26, 2026 and BPO Assistant 2020 on October 20, 2026.

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