Audio Spectrum Analyzer Pro vs STETSOM DSPLAYER AMPLIFIER
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
STETSOM DSPLAYER AMPLIFIER
This application provides comprehensive control over professional audio adjustments for car and speaker installations. It supports various input methods including RCA, optical, USB, and Bluetooth, along with FM radio functionality. Fine-tune audio settings like equalization, phase, and delay for optimal sound.
- RCA and WIRE audio input
- High-fidelity optical audio input
- USB and Bluetooth music playback
- FM radio with favorites
- Digital audio output
- Equalization, Level, Phase, Delay adjustments
- Quick setup modes for car/speaker
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The STETSOM DSPLAYER AMPLIFIER offers full control over the use of professional audio features and adjustments. Its features include: - RCA and WIRE audio input - High-fidelity optical audio input - USB connection for MP3 music playback - Bluetooth connection for wireless music playback - Dedicated input for long-distance control - Audio output with digital processing for connection to other devices - FM radio with favorites mode - EQUALIZATION, LEVEL, PHASE, DELAY, CROSSOVER, VOLTMETER adjustments and quick setup modes for CAR and SPEAKER installation types
Screenshots
Verdict
The clearest difference is in-app purchases: STETSOM DSPLAYER AMPLIFIER at none against Audio Spectrum Analyzer Pro's 2. STETSOM DSPLAYER AMPLIFIER also leads on update cadence (every 3 weeks vs every 7 months). Audio Spectrum Analyzer Pro's advantage is review sentiment (57% vs 24%). On price, ads, device support and iOS requirement 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. Audio Spectrum Analyzer Pro sells 2 in-app purchases, starting at $19.99 per year. STETSOM DSPLAYER AMPLIFIER asks for nothing beyond the download.
Audio Spectrum Analyzer Pro ships an update every 7 months, STETSOM DSPLAYER AMPLIFIER every 3 weeks. Both last shipped on October 20, 2026.
| Parameter | Audio Spectrum Analyzer Pro | STETSOM DSPLAYER AMPLIFIER |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (239 ratings) — better | — |
| Positive reviews | 57.4% of reviews — better | 24.0% of reviews |
| Number of ratings | 239 — better | — |
| Update frequency | Every 7 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 40 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | Vlad Polyanskiy | STETSOM ELETRÔNICA LTDA |
Customer experience
Audio Spectrum Analyzer Pro
STETSOM DSPLAYER AMPLIFIER
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
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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
STETSOM DSPLAYER AMPLIFIER
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Audio Spectrum Analyzer Pro
- Premium Mode7 Days trial$19.991 Year
- Premium Pack$29.99
STETSOM DSPLAYER AMPLIFIER
No in-app purchases
Questions
Is Audio Spectrum Analyzer Pro free?
Is STETSOM DSPLAYER AMPLIFIER free?
Do Audio Spectrum Analyzer Pro or STETSOM DSPLAYER AMPLIFIER have ads?
Which is updated more often, Audio Spectrum Analyzer Pro or STETSOM DSPLAYER AMPLIFIER?
Other comparisons
