RTA Audio vs Spectrum Analyzer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RTA Audio
Analyze audio in real-time with detailed frequency spectrum and waveform visualizations. Record and export your audio analysis results, including spectrograms and frequency tables, for sharing or archiving.
- Real-time audio analysis (FFT)
- Recording and offline processing
- Spectrogram and waveform visualization
- Exportable analysis reports (PDF)
- Adjustable resolution and frequency scale
- Peak and RMS metering
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RTA Audio Realtime analyzer with recording and Visualizer module with export. ••• Realtime analyzer ••• Realtime analyzer gives you the ability to analyze realtime audio input (built-in microphone or external audio accessory inputs) using Fast Fourier Transform with selected window function. You can also record the input for future offline processing or export. ••• Visualizer ••• This module presents you the results of offline audio analysis. Selecting previously captured recording gives the graph view, spectrogram and waveform of the audio data. Simple controls gives you the ability to play, loop, seek and change rate of the recording synchronized with analysis data presentation. Export function allows you to share or archive your analysis. Resulting PDF document contains basic recording information, spectrogram, peak & RMS graph and frequency table data with maximum peaks (with the time of the occurrence in recording) ••• Features ••• Resolution: 1/2 - 1/96 Octave Logarithmic frequency scale Fixed frequency range (20 - 20kHz) Tone scale view C₀- H₈ (A₄ = 440Hz) Peak hold graph Peak average graph RMS average graph Pointer (watch) function Peak and RMS input meter ••• Audio input specification ••• Audio session mode - measurement Input gain control Sample rate: 48000 Hz Bit depth: Float32 Channel: 1(mono) Frequency range: 20Hz - 20kHz Dynamic range: -100dB - 0dB ••• FFT (Fast Fourier Transform) specification ••• Frame size: 8192 Overlap: from 60% to 90% Smoothing Window: Bartlett-Hann, Blackman, Blackman-Harris (default), Blackman-Nuttell, Cosine, Flat Top, Gauss, Hamming, Hann, Lanczos, Nuttall, Rectangular, Triangular Hardware acceleration
Spectrum Analyzer
Visualize audio frequencies with real-time analysis. Features include a sound level meter, multichannel harmonic analysis, and adjustable graphical representations. Gain insights into your sound environment with advanced tools.
- Sound level meter
- Multichannel harmonic analysis
- Adjustable graphics
- AI-powered sound source analyzer
- Real-time analysis
- FFT analysis
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Spectrum Analyzer is a pro audio tool with sound level meter, multichannel harmonic analysis and detailed graphical representation. Learn something new about your sound environment with real-time analysis! FEATURES: - sound level meter; - harmonic analyzer; - adjustable graphics; - AI-powered sound source analyzer. SOUND LEVEL METER - precise measurement of sound and noise level - real-time results HARMONIC ANALYZER - multichannel FFT analysis; - adjustable parameters; - graphical representation. ADJUSTABLE GRAPHICS - various graphics and diagram types; - zoom of selected chart areas. This app offers subscriptions. The paid version includes AI noise detection, immersive 3D visualization, and customizable settings. The free version offers dB/Hz measurement, 2D mode, and limited visualization options. Privacy Policy: https://musicbreath.com/privacy Terms Of Use: https://musicbreath.com/tos
Screenshots
Verdict
The clearest difference is review sentiment: RTA Audio at 59% against Spectrum Analyzer's 5%. RTA Audio also leads on ads (none vs shown). Spectrum Analyzer's advantage is rating (4.2 vs 3.6) and update cadence (fortnightly vs every 28 months). On price, in-app purchases, monetization model 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
Both are free to download. RTA Audio sells 1 one-off in-app purchase and Spectrum Analyzer sells 13 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Spectrum Analyzer holds the better App Store score, 4.2 against 3.6. That said, the two scores are not equally well evidenced: Spectrum Analyzer has 197 ratings behind it against 31, so its average is the more settled of the two. Written reviews complicate that: 59% of RTA Audio's written reviews are positive against 5% of Spectrum Analyzer's, so the app with the better star average is not the one people write more warmly about.
RTA Audio ships an update every 28 months, Spectrum Analyzer fortnightly. The most recent releases landed on September 28, 2026 and September 26, 2026 respectively.
| Parameter | RTA Audio | Spectrum Analyzer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (31 ratings) | 4.2 (197 ratings) — better |
| Positive reviews | 58.5% of reviews — better | 5.0% of reviews |
| Number of ratings | 31 | 197 — better |
| Update frequency | Every 28 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 2 MB | 132 MB |
| Age rating | 4+ | 4+ |
| Developer | New Ball s.r.o. | Music Breath |
Customer experience
RTA Audio
Spectrum Analyzer
Bugs and requests
RTA Audio
Not enough reviews yet to summarise bugs or requests.
Spectrum Analyzer
Reported bugs
10 issues- App becomes unusable after iOS 16 update
- Crashes immediately on iPhone 5 with iOS 7
- Cannot exit app on iPhone X without reboot
- App freezes when changing settings or views
- Inaccurate frequency readings
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- Slow and unresponsive performance
- App hijacks device sound settings
- Accidental in-app purchases triggered by home button
- Subscription charges without clear user consent
- App locks users into year-long subscriptions with no cancellation option
Requested features
7 requests- Audio file import functionality
- Customizable background colors for chroma key compatibility
- Ability to record audio instead of only analyzing
- Better documentation and help files
- Improved sensitivity for detecting soft sounds
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- Dark mode option
- Upfront pricing disclosure before download
In-app purchases
RTA Audio
- Upgrade to full version$14.99
Spectrum Analyzer
- Pitch Finder: Audio Visualizer3 Days trial$4.997 Days
- Pitch Finder: Audio Visualizer3 Days trial$9.991 Month
- One Month Sale$9.991 Month
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- 1 Week Subscription3 Days trial$9.997 Days
- 1 Year Sub. with discount$19.991 Year
- 1 Month Subscription$19.991 Month
- 3 Month Subscription$25.993 Months
- 1 Year Subscription3 Days trial$39.991 Year
- 2 months subscription3 Days trial$39.992 Months
- No Ads$9.99
- Additional Settings Controls$15.99
- Full Pack + No Ads$19.99
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- Get More$19.99
Questions
Is RTA Audio free?
Is Spectrum Analyzer free?
Which has better reviews, RTA Audio or Spectrum Analyzer?
Do RTA Audio or Spectrum Analyzer have ads?
Which is updated more often, RTA Audio or Spectrum Analyzer?
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