Comparison

Audio Spectrum Analyzer Pro vs BassBox Reflex Pro

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

Head to head
About

Audio Spectrum Analyzer Pro

Analyze sound frequencies in real-time with this powerful tool. It offers detailed octave band analysis, FFT plots, and various measurement scales. Supports multiple microphones and noise analysis features for accurate audio insights.

Highlights
  • Octave Band Real Time Analyzer
  • FFT Plot (Fast Fourier Transform)
  • Sound level meter (dB meter)
  • Noise Rating and Noise Criterion support
  • Support for external microphones
  • Pre-calibrated mic profiles
Features
Read full description

Audio Spectrum Analyzer is a powerful real-time audio analysis app. Full of features yet very simple to use. Sound level meter (db meter a-weighted, noise rating, noise criterion) included. Feature Highlights: • Octave Band Real Time Analyzer • FFT Plot (Fast Fourier Transform) • Linear and logarithm scales • Up to 16384 FFT size • A lot of available window functions • Tracking for max value • Max and Min for any selected frequency • Stunned graphics • Reliable measurement accuracy with pre-calibrated profiles for 3 device-integrated mics • Additional precision with integrated support and pre-calibrated profiles for AirPods, AirPods Pro • Safer measurements using the Airpods Pro noise cancellation feature • Support for external microphones (wired or via Bluetooth) • Noise Rating and Noise Criterion support And many many more... Terms of Use: https://www.iubenda.com/terms-and-conditions/94359518

About

BassBox Reflex Pro

This app helps users design and build subwoofer enclosures for optimal bass reflex performance. It offers various enclosure types, detailed calculations for frequency response and SPL, and tools for speaker resistance and signal generation.

Highlights
  • Bass reflex enclosure calculations
  • Multiple enclosure types (BB4, QB3, C4, etc.)
  • Frequency response and SPL graphing
  • Speaker resistance calculation
  • Signal generator tool
  • Box panel measurement details
  • Project saving and sharing
Features
Read full description

An application designed to maximize the performance of a subwoofer in bass reflex. Calculates the size of the box in Bass Reflex enclosure following: • BB4 (4th Order Boom Box) / SBB4 (Super 4th Order Boom Box). • QB3 (Quasi 3th Order Butterworth) / SQB3 (SuperQuasi 3th Order Butterworth). • C4 (Chebyshev to ugual ripple) / SC4 (4th Order Sub-Chebyshev). • Maxim Flat. • Box losses Ql 3, Ql 7 and Ql 15. • Graphic for Frequency Response, Displacement-L. SPL, Thermally-L. SPL, Max Power SPL and Maxim Excursion. • E.B.P. (Efficiency Bandwidth Product). • Full results data: Sensibility Spl, Efficiency Spl, db Peak Level, Fmax, Re Total, Qes Total, Qts Total, Sd, Vd, Cms, Mms, Bxl, Cmes, Rms, Res. • Calculate Accord in Round or Square form. • Three correction types for each end of the port. • Select up to 6 Accord. • Results of Area, Volume, Length. Selecting the shape and calculation of the volume of the box. Designs the box in the following forms: - Cube / Rectangular Parallelepiped. - Triangle Prism - Wedge - Wedge2 - Truncated of Pyramid - Hexagonal Prism - Cylinder - Sphere • Detail of panel measurements to build the case with cut PDFs and cut pattern. • Tool for calculating the electric resistance of two or more speakers, single or double coil in parallel, series or series / parallel. • Tool Signal Generator, useful for testing the performance of a subwoofer: • Control of the single Frequency with the slider from 10Hz to 300Hz, Pink Noise, White Noise, Sweep Frequency 300>10Hz and 10>300Hz, Loop and Gain tones. • Tool for calculating the Volume of speaker size. • Saving, sharing or printing projects. • Customization of projects with the possibility to enter the data of your business.

Screenshots

Audio Spectrum Analyzer Pro4 screens
BassBox Reflex Pro4 screens

Verdict

The call

The clearest difference is price: Audio Spectrum Analyzer Pro at Free against BassBox Reflex Pro's $3.99. Audio Spectrum Analyzer Pro also leads on rating (4.4 vs 1.8) and review sentiment (57% vs 17%). BassBox Reflex Pro's advantage is in-app purchases (none vs 2). On update cadence, 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

Audio Spectrum Analyzer Pro is free to download; BassBox Reflex Pro costs $3.99 up front. Audio Spectrum Analyzer Pro sells 2 in-app purchases, starting at $19.99 per year. BassBox Reflex Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Audio Spectrum Analyzer Pro holds the better App Store score, 4.4 against 1.8. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer Pro has 239 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 57% of Audio Spectrum Analyzer Pro's written reviews are positive against 17% of BassBox Reflex Pro's.

UpkeepUpdate frequency

Audio Spectrum Analyzer Pro ships an update every 7 months, BassBox Reflex Pro every 8 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 4 level
Audio Spectrum Analyzer Pro versus BassBox Reflex Pro: the parameters behind the verdict, then further details
ParameterAudio Spectrum Analyzer ProBassBox Reflex Pro
PriceFree — better$3.99
Rating4.4 (239 ratings) — better1.8 (5 ratings)
Positive reviews57.4% of reviews — better16.7% of reviews
Number of ratings239 — better5
Update frequencyEvery 7 months — betterEvery 8 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size40 MB20 MB
Age rating4+4+
DeveloperVlad PolyanskiyPasquale Puglisi

Customer experience

Audio Spectrum Analyzer Pro

All ratings238 ratings
Positive85.3%
Neutral4.6%
Negative10.1%
Written reviews183 reviews
Positive57.4%
Neutral7.1%
Negative35.5%

BassBox Reflex Pro

All ratings5 ratings
Positive20.0%
Neutral0.0%
Negative80.0%
Written reviews6 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

Bugs and requests

Audio Spectrum Analyzer Pro

Reported bugs

11 issues
  • App crashes on iOS 16 and iOS 26 launches
  • FFT resolution not working after iOS updates
  • Graph display freezes or becomes unresponsive
  • Spectrograph mode too slow on newer iPhones
  • Frequency alignment issues with dynamic display
Show 6 more
  • App won't uninstall properly
  • Malware warnings appearing
  • Help links and support pages broken/dead
  • Incorrect dB level readings (off by ~20dB)
  • Recording functions non-functional
  • Half black screen in certain orientations

Requested features

11 requests
  • Audio file upload capability
  • White noise/test signal generator
  • Microphone calibration file support
  • Recording functionality with timestamp
  • Multiple frequency cursors for comparison
Show 6 more
  • Ability to compare before/after curves
  • Adjustable dB level zoom/scaling
  • Saved settings and personalizations
  • Audio Unit (AUV3) plugin support
  • Peak hold reset button
  • Time-domain recording in spectrograph mode

BassBox Reflex Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Audio Spectrum Analyzer Pro

Subscriptions1
  • Premium Mode7 Days trial$19.991 Year
One-time1
  • Premium Pack$29.99
None

BassBox Reflex Pro

No in-app purchases

Questions

Is Audio Spectrum Analyzer Pro free?
Audio Spectrum Analyzer Pro is free to download, with in-app purchases available.
Is BassBox Reflex Pro free?
BassBox Reflex Pro costs $3.99, with no in-app purchases.
Which has better reviews, Audio Spectrum Analyzer Pro or BassBox Reflex Pro?
Audio Spectrum Analyzer Pro is rated higher. Audio Spectrum Analyzer Pro averages 4.4 out of 5 from 239 ratings, while BassBox Reflex Pro averages 1.8 from 5 ratings.
Do Audio Spectrum Analyzer Pro or BassBox Reflex Pro have ads?
Neither Audio Spectrum Analyzer Pro nor BassBox Reflex Pro shows ads.
Which is updated more often, Audio Spectrum Analyzer Pro or BassBox Reflex Pro?
Audio Spectrum Analyzer Pro ships an update every 7 months, and BassBox Reflex Pro every 8 months. Most recently, Audio Spectrum Analyzer Pro was updated on November 6, 2026 and BassBox Reflex Pro on November 2, 2026.

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