Audio / Spectrum Analyzer vs Fairbuds
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Audio / Spectrum Analyzer
This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.
- Simultaneous waveform and spectrum display
- Configurable display layouts
- Selectable FFT size and averaging
- Frequency weighting options (Flat, dBA, dBC)
- Octave band analysis
- Audio signal and noise generation
- Peak hold and pitch meter
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This RTA app supports simultaneous display of "Audio Waveform", as well as the FFT-based "Amplitude Spectrum" (frequency magnitude) and "Spectrogram" (frequency distribution over time), for audio signals input from a microphone. (FFT: Fast Fourier Transform, RTA: Real Time Analyzer) [Features] - Supports simultaneous display of Waveform / Spectrum / Spectrogram - Supports orientation both portrait and landscape - FFT size - Window function - Spectrum average - Spectrum Tilt - Frequency weighting (Flat, dBA, dBC) - The type of expressing the frequency of Spectrum / Spectrogram (Linear, Log) - Displays the peak level and its frequency of the spectrum - Peak Hold (displays the results of holding past peak values of the spectrum) - Octave Analysis (displays the spectrum divided into octave bands) - Generates the audio signal (Sine, Triangle, Squire, Saw) - Generates the noise signal (white noise, pink noise) - Pitch meter display The Pro version offers Ad-Free Viewing and High-Resolution Analysis (FFT size: 16384, 32768, Spectrum Average: 4, 8). [Setting items] 1. Screen structure : Select the display screen configuration. View Num : 1, 2 View Type : - 1 screen : Wave (Waveform) / 1D (Spectrum) / 2D (Spectrogram) - 2 screens : W+1D / W+2D / 1D+2D Layout : Vertical / Horizon 2. Frequency Axis Scale Type : Selectable the type of expressing the X direction (frequency) of Spectrum / Spectrogram. - Linear: Distributed at equal intervals - Log: The intervals increase logarithmically 3-1. FFT size : 1024, 2048, 4096, 8192, 16384, 32768 (* 16384, 32768 is available in the Pro version.) 3-2. Window function : Hanning, Hamming, Blackman, No window 4. Spectrum Average Number of spectrum average for a display of spectrum. 1, 2, 4, 8 (init value: 1) (* 4 and 8 are available in the Pro version.) Higher value will make the spectrum less noisy and more smooth, at the cost of lower time resolution. 5. Spectrum Tilt : Compensates the visual slope of the spectrum around a 1 kHz pivot. -6.0 to +6.0 dB/oct in 0.5 dB/oct steps (0 means no tilt). 6. Frequency Weighting : Selectable frequency weighting. - Flat: No frequency weighting is applied. - dB(A): Frequency response that takes into account human hearing. - dB(C): Relatively flat response. 7. Peak Hold : Displays the results of holding the past maximum values (peak values) of the spectrum. 8. Octave Analysis : Displays the results of classifying the spectrum into octave bands. Division method: - FFT: Spectral display - 1/24, 1/12, 1/6, 1/3, 1 octave: Display divided into octave bands Calc method: - Max: Displays the maximum spectrum value in each band - Average: Displays the average spectrum value in each band 9. Generates the audio signal : Set the audio signal to be generated. - There are 4 types of waveform. (Sine, Triangle, Squire, Saw) - It can set the value of the frequency in 20Hz - 20000Hz. 10. Generates the noise signal : Set the noise signal to be generated. - There are 2 types of noise. (White noise, pink noise) [Other] - Background color: Black, White - WaveForm: Line Color (Green, Yellow, Invert), Line Width (1.0 ~ 6.0 px) - Spectrum: Bar color (Green, Yellow, Color patterns) - Spectrogram: Colormap, Display range (-150 ~ -60 dB), Display time (4 ~ 60 sec), Apply Spectrum Tilt - Bluetooth connection policy selection (disabled, HFP, A2DP). - Scaling of Waveform / Spectrum display in the Y direction (magnification: 0.5 - 2.0). - Scaling of Spectrum / Spectrogram display in the X direction (magnification: 1.0 - 16.0).
Fairbuds
Customize your audio experience with advanced equalizer settings and ensure your device is always up-to-date. Tailor bass, vocals, and more to your preferences for music and podcasts.
- Customizable equalizer presets
- Multi-band EQ for granular control
- Firmware update notifications
- Sound profile creation
- Adjust bass and vocals
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Unlock the full potential of your Fairbuds or Fairbuds XL with the newly revamped Fairbuds app. Take full control of your sound, and tailor it exactly to your liking. Choose from an array of new presets to adjust the equalizer. Go heavy on the bass when listening to electronic music, or switch to clearer vocals for your favorite podcasts. You can go even more granular with the custom EQ feature and tweak the sound from scratch. Use the Fairbuds apps to play around with a multi-band equalizer, and create the perfect sound profile for yourself. You can also use the Fairbuds app to make sure your device's firmware is always up-to-date. Get notifications when a new update is available, and make sure your Fairphone audio product is always performing at its peak.
Screenshots
Verdict
The clearest difference is review sentiment: Audio / Spectrum Analyzer at 79% against Fairbuds's 13%. Audio / Spectrum Analyzer also leads on rating (4.6 vs 2.7) and ratings volume (1K vs 3). Fairbuds's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence, 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 sells 1 one-off in-app purchase. Fairbuds asks for nothing beyond the download.
Audio / Spectrum Analyzer holds the better App Store score, 4.6 against 2.7. That said, the two scores are not equally well evidenced: Audio / Spectrum Analyzer has 1K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 79% of Audio / Spectrum Analyzer's written reviews are positive against 13% of Fairbuds's.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 29, 2026 and July 5, 2026 respectively.
| Parameter | Audio / Spectrum Analyzer | Fairbuds |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1K ratings) — better | 2.7 (3 ratings) |
| Positive reviews | 78.6% of reviews — better | 13.3% of reviews |
| Number of ratings | 1K — better | 3 |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 5 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | Loop-Sessions.LLC. | Fairphone B.V. |
Customer experience
Audio / Spectrum Analyzer
Fairbuds
Bugs and requests
Audio / Spectrum Analyzer
Reported bugs
3 issues- Stuck on latest measurement
- White noise instead of expected functionality
- Disconnects AirPods
Requested features
4 requests- Sampling rate adjustment
- Wave shape tracking
- Audio file analysis
- Octave analysis
Fairbuds
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Audio / Spectrum Analyzer
- Pro (Remove ads, High-Res analysis)$11.99
Fairbuds
No in-app purchases
Questions
Is Audio / Spectrum Analyzer free?
Is Fairbuds free?
Which has better reviews, Audio / Spectrum Analyzer or Fairbuds?
Do Audio / Spectrum Analyzer or Fairbuds have ads?
Which is updated more often, Audio / Spectrum Analyzer or Fairbuds?
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