iAnalyzer vs Audio Spectrum Analyzer Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iAnalyzer
This professional audio analysis software uses FFT to examine sound signals on iOS devices. It offers real-time spectrum analysis, precise peak frequency computation, and a unique instrument tuner function. Ideal for musicians and sound engineers seeking detailed audio insights.
- Real-time FFT spectrum analysis
- Octave and 1/3 Octave display
- High precision peak frequency computation
- Instrument tuner function
- Adjustable playback speed
- VGA output support
- Waveform display
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iAnalyzer is a FFT based professional software to analyze the audio signals for iPhone, iPod Touch and iPad. After 10 years of good sales all over the world, we are glad to see that iAnalyzer has gradually become the industry standard in audio analyze field, due to it's very high quality of course. This is definitely a Must Have app for every musician or sound engineer. We also released the Mac version, you can download it from "Mac App Store". Features: -High performance software design for Real Time Analyzing(RTA) and complex graph displaying. -Works on 44K sample rate, 20~20k Hz frequency output. -FFT spectrum, Octave and 1/3 Octave result display. -Colored curve depend on the dB value. -Flex FFT size, 4K, 8K, or 16K. -Reference Pressure configurable. -2D or 3D or Mix 2D&3D display. -History result display while in 3D mode. -High precision peak frequency computation, average-error lower than 0.1%. -Auto peak frequency tracing, up to 3 peaks can be displayed simultaneously and each one be linked from text to the graph clearly. -Frequency to music scale converter, you can use iAnalyzer as a professional instrument tuner, or to test if any sound is tuneful. -Powerful synthesizer to allow you replay the audio with different speed, from 1/8 to 4x. With this feature, you can listen to your recoding very slowly. (Require iPhone 4S and later, iPad 2 and later which shipped with multiple cores processor.) -VGA output support. Sync display on your device and extern screen. (iPhone 4, iPod touch 4 and iPad required) -Current waveform display and summary waveform display. -Record at any position and red color to mark the latest recording, unlimited recording time. -Play back the recording. -Oscope Auto-Scale: Enable you to view more details for low level signal. -Snap to Peak: Find peak more easily while using measure line. -File Manager: Recording in wave format, create new files, delete exist files, etc. -Wifi Transfer and Data exporting: Download wav files with your browser, including screen shot, FFT result in txt file. -Touch in the result area to use the measure line, bordered label means where is a peak. -Move in the waveform area or touch on the bottom of the area to change the current position, iAnalyzer re-compute and update graph automatically. You can also change the position while playing. Note: -The internal mic of iPhone first generation can only works on 8K sample rate, you need head-set to achieve 44k. -Press "File" button to see the HTTP address, it is in the bottom of the window. -For more information, Please visit http://phyar.cn . How to Use: -Touch and move in the result area with one finger to use the measure line. -Touch and move in the result area with 3 fingers to rotate the 3D graph. -Touch and move in the summary waveform area to move the current position. -Tap in the scroll bar area(bottom of screen) to re-seek the current position. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: http://phyar.cn/pp/
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.
- 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
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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
Screenshots
Verdict
The clearest difference is review sentiment: Audio Spectrum Analyzer Pro at 57% against iAnalyzer's 41%. Audio Spectrum Analyzer Pro also leads on rating (4.4 vs 4.2) and ratings volume (238 vs 75). On price, update cadence, ads and in-app purchases 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. iAnalyzer sells 2 in-app purchases, starting at $4.99 per month and Audio Spectrum Analyzer Pro sells 2 in-app purchases, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.
Audio Spectrum Analyzer Pro holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 75 and 238 respectively. Written reviews point the same way: 41% of iAnalyzer's written reviews are positive against 57% of Audio Spectrum Analyzer Pro's.
iAnalyzer ships an update every 5 months, Audio Spectrum Analyzer Pro every 7 months. Both last shipped on September 24, 2026.
| Parameter | iAnalyzer | Audio Spectrum Analyzer Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (75 ratings) | 4.4 (238 ratings) — better |
| Positive reviews | 40.5% of reviews | 57.4% of reviews — better |
| Number of ratings | 75 | 238 — better |
| Update frequency | Every 5 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 3 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | 平 陈 | Vlad Polyanskiy |
Customer experience
iAnalyzer
Audio Spectrum Analyzer Pro
Bugs and requests
iAnalyzer
Not enough reviews yet to summarise bugs or 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
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- 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
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- 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
In-app purchases
iAnalyzer
- iAnalyzer Pro (1 Month)3 Days trial$4.991 Month
- iAnalyzer Pro (1 Year)3 Days trial$29.991 Year
Audio Spectrum Analyzer Pro
- Premium Mode7 Days trial$19.991 Year
- Premium Pack$29.99
Questions
Is iAnalyzer free?
Is Audio Spectrum Analyzer Pro free?
Which has better reviews, iAnalyzer or Audio Spectrum Analyzer Pro?
Do iAnalyzer or Audio Spectrum Analyzer Pro have ads?
Which is updated more often, iAnalyzer or Audio Spectrum Analyzer Pro?
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