FFT Plot vs Spectrum Analyzer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FFT Plot
This real-time audio analysis app provides precision sound measurement and visualization. It's ideal for detecting sound issues, room tuning, and speaker calibration, offering detailed frequency analysis for musicians and audio professionals.
- Real-time audio analysis
- Frequency detection
- Averaging options
- Window functions
- Linear and logarithmic scales
- Weighting options
- Draggable cursors
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***** "I use this app to detect sound feedback problems on live show and it became helpful and practic." FFT Plot is a powerful real-time audio analysis app. Designed with musicians and recording engineers in mind, it can also be used by anyone interested in the world of sound. Ideal for room tuning or speaker tuning, the app enables portable, precision audio measurement and visualization. Feature Highlights: ● FFT Size (2048 to 16384 points) ● Fast, Slow and Infinite Averaging ● Window function (Hamming, Hann, Rect) ● Peak Frequency detection ● Linear and Logarithmic scale ● Toggle between Flat, A and C weighting ● Pan to adjust visible dB range ● Draggable cursors ● iPhone X ready Audio credits: "Evening Birdsong" and "Cuckoo" by Benboncan
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: FFT Plot at 84% against Spectrum Analyzer's 5%. FFT Plot also leads on rating (4.8 vs 4.2) and in-app purchases (none vs 13). Spectrum Analyzer's advantage is price (Free vs $9.99) and update cadence (fortnightly vs every 17 months). On ratings volume 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
Spectrum Analyzer is free to download; FFT Plot costs $9.99 up front. Spectrum Analyzer sells 13 in-app purchases, starting at $4.99 per 7 days. FFT Plot asks for nothing beyond the download.
FFT Plot holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 90 and 197 respectively. Written reviews point the same way: 84% of FFT Plot's written reviews are positive against 5% of Spectrum Analyzer's.
FFT Plot ships an update every 17 months, Spectrum Analyzer fortnightly. The most recent releases landed on September 23, 2026 and September 26, 2026 respectively.
| Parameter | FFT Plot | Spectrum Analyzer |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.8 (90 ratings) — better | 4.2 (197 ratings) |
| Positive reviews | 84.4% of reviews — better | 5.0% of reviews |
| Number of ratings | 90 | 197 — better |
| Update frequency | Every 17 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 7 MB | 132 MB |
| Age rating | 4+ | 4+ |
| Developer | ONYX Apps | Music Breath |
Customer experience
FFT Plot
Spectrum Analyzer
Bugs and requests
FFT Plot
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
FFT Plot
No in-app purchases
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 FFT Plot free?
Is Spectrum Analyzer free?
Which has better reviews, FFT Plot or Spectrum Analyzer?
Do FFT Plot or Spectrum Analyzer have ads?
Which is updated more often, FFT Plot or Spectrum Analyzer?
Other comparisons
