Comparison

Audio Spectrum Analyzer Pro vs KRK Audio Tools

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

KRK Audio Tools

This application offers a suite of professional tools designed to optimize your studio monitor setup. It includes features for real-time frequency analysis, level calibration, EQ recommendations, and precise monitor alignment for an enhanced listening experience.

Highlights
  • Spectrum RTA for real-time frequency analysis
  • Level Meter for monitor calibration
  • EQ Recommendation for room optimization
  • Monitor Align for precise angle adjustment
  • Delay tool for multi-monitor time alignment
  • Polarity tool for wiring verification
  • Signal generator (sine, white, pink noise)
Features
Read full description

KRK Audio Tools App is a suite of professional tools ideal for monitor tuning that can help you to get the best experience with your KRK monitors. It includes the following tools: - "Spectrum RTA" tool is used to measure and display the frequency spectrum of the input audio signal in realtime. - "Level Meter" tool is used for monitor level calibration. - "EQ Recommendation" tool is used to help determine which EQ presets may work best in your room. - "Monitor Align" tool is used to perfectly align the angle of your studio monitors. - "Delay" tool is used to time-align your monitors in a multi monitor system. - "Polarity" tool is used for verifying that monitors are wired correctly. Furthermore, it includes a signal generator that can generate sine waves, white noise and pink noise. The inline help contains instructions to use the tools correctly.

Screenshots

Audio Spectrum Analyzer Pro4 screens
KRK Audio Tools4 screens

Verdict

The call

The clearest difference is in-app purchases: KRK Audio Tools at none against Audio Spectrum Analyzer Pro's 2. KRK Audio Tools also leads on iOS requirement (9.3 vs 13.0). Audio Spectrum Analyzer Pro's advantage is rating (4.4 vs 4.1) and ratings volume (238 vs 40). On price, review sentiment, ads and device support 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. Audio Spectrum Analyzer Pro sells 2 in-app purchases, starting at $19.99 per year. KRK Audio Tools 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 4.1. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer Pro has 238 ratings behind it against 40, 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 54% of KRK Audio Tools's.

Scorecard5 real differences · 5 level
Audio Spectrum Analyzer Pro versus KRK Audio Tools: the parameters behind the verdict, then further details
ParameterAudio Spectrum Analyzer ProKRK Audio Tools
PriceFreeFree
Rating4.4 (238 ratings) — better4.1 (40 ratings)
Positive reviews57.4% of reviews — better54.2% of reviews
Number of ratings238 — better40
Update frequencyEvery 7 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.09.3 — better
Further details — not scored
Size40 MB10 MB
Age rating4+4+
DeveloperVlad PolyanskiyKRK Systems, Inc.

Customer experience

Audio Spectrum Analyzer Pro

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

KRK Audio Tools

All ratings40 ratings
Positive77.5%
Neutral2.5%
Negative20.0%
Written reviews24 reviews
Positive54.2%
Neutral4.2%
Negative41.7%

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

KRK Audio Tools

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

KRK Audio Tools

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 KRK Audio Tools free?
KRK Audio Tools is free to download, with no in-app purchases.
Which has better reviews, Audio Spectrum Analyzer Pro or KRK Audio Tools?
Audio Spectrum Analyzer Pro is rated higher. Audio Spectrum Analyzer Pro averages 4.4 out of 5 from 238 ratings, while KRK Audio Tools averages 4.1 from 40 ratings.
Do Audio Spectrum Analyzer Pro or KRK Audio Tools have ads?
Neither Audio Spectrum Analyzer Pro nor KRK Audio Tools shows ads.

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