Comparison

Audio Spectrum Analyzer Pro vs Audio RTA

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

Audio RTA

This application transforms your mobile device into a real-time audio analysis tool. It allows you to monitor sound frequencies, decibel levels, and identify peaks using your device's microphone, aiding in the tuning and testing of various audio systems.

Highlights
  • Real-time RTA/FFT analyzer
  • dB meter
  • Frequency generator
  • Test tones, noise, and sweeps
  • Subwoofer test tools
  • Stereo channel tests
Features
Read full description

See the live sound spectrum, find frequency peaks and test your speakers with a practical audio toolkit on your phone. For musicians, sound technicians and installers working with PA systems, studios, instruments and car audio. Use the microphone spectrum as a visual aid when checking sound; the app does not automatically equalize your system. Free basic tools: • Real-time microphone RTA/FFT spectrum • Approximate dB level meter • Frequency generator from 20 Hz to 20 kHz • Subwoofer and stereo channel tests • White noise for general testing Audio Tools Pro is a one-time purchase for lifetime access to advanced tools: waterfall/spectrogram, third-octave bands, manual dB offset, PNG/CSV exports, pink noise and advanced waveforms and sweeps. Access stays linked to your store account. Measurements depend on your device microphone and hardware. Manual dB offset aligns readings to a reference meter; it does not provide certified calibration. Use low volume to protect hearing and equipment. The app does not replace a certified sound-level meter or measure calibrated loudspeaker frequency response. Audio analysis runs on your device; purchases require a connection. The store shows the current Pro price.

Screenshots

Audio Spectrum Analyzer Pro4 screens
Audio RTA4 screens

Verdict

The call

The clearest difference is rating: Audio RTA at 5.0 against Audio Spectrum Analyzer Pro's 4.4. Audio RTA also leads on update cadence (weekly vs every 7 months) and monetization model (free vs free with in-app purchases). Audio Spectrum Analyzer Pro's advantage is ratings volume (239 vs 1) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases 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 and Audio RTA sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Audio RTA holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer Pro has 239 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Audio Spectrum Analyzer Pro ships an update every 7 months, Audio RTA weekly. Both last shipped on October 20, 2026.

Scorecard5 real differences · 5 level
Audio Spectrum Analyzer Pro versus Audio RTA: the parameters behind the verdict, then further details
ParameterAudio Spectrum Analyzer ProAudio RTA
PriceFreeFree
Rating4.4 (239 ratings)5.0 (1 ratings) — better
Positive reviews57.4% of reviews—
Number of ratings239 — better1
Update frequencyEvery 7 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size40 MB36 MB
Age rating4+4+
DeveloperVlad PolyanskiyMateus Polonini Cardoso

Customer experience

Audio Spectrum Analyzer Pro

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

Audio RTA

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

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

Audio RTA

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
1 purchases

Audio RTA

One-time1
  • Audio Analyzer RTA Pro$1.99

Questions

Is Audio Spectrum Analyzer Pro free?
Audio Spectrum Analyzer Pro is free to download, with in-app purchases available.
Is Audio RTA free?
Audio RTA is free to download, with in-app purchases available.
Which has better reviews, Audio Spectrum Analyzer Pro or Audio RTA?
Audio RTA is rated higher. Audio Spectrum Analyzer Pro averages 4.4 out of 5 from 239 ratings, while Audio RTA averages 5.0 from 1 ratings.
Do Audio Spectrum Analyzer Pro or Audio RTA have ads?
Neither Audio Spectrum Analyzer Pro nor Audio RTA shows ads.
Which is updated more often, Audio Spectrum Analyzer Pro or Audio RTA?
Audio Spectrum Analyzer Pro ships an update every 7 months, and Audio RTA weekly. Most recently, Audio Spectrum Analyzer Pro was updated on October 20, 2026 and Audio RTA on October 20, 2026.

Other comparisons