Audio Spectrum Analyzer vs Flipper Mobile App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Audio Spectrum Analyzer
Transform your iOS device into a powerful audio spectrum analyzer. Visualize frequencies up to 20 kHz with customizable display options including frequency span, FFT size, and logarithmic views. Enhance analysis with filtering, peak hold, and adjustable decay rates.
- Frequency analysis up to 20 kHz
- Adjustable frequency span and FFT size
- Logarithmic frequency display
- Graph fill mode toggle
- Up to five frequency markers
- Spectrum filtering and averaging
- Peak hold with adjustable decay rate
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Spectrum Pad turns your iPad, iPhone, or iPod Touch into an audio spectrum analyzer. Frequencies up to 20 kHz can be displayed. You can control the displayed frequency span, as well as the FFT size, from 1024 to 262144 bins. A logarithmic display of the entire 10 Hz to 20 kHz frequency range is available, and the graph fill mode can be turned on and off, as well as the display of up to five frequency markers. Filtering (averaging) can be applied to the spectrum, to smooth out variations. You can turn on the Peak Hold to make it easier to see transient events, as well as adjust the decay rate. Swiping with two fingers lets you adjust the brightness of the spectrum or the graticule grid overlay. Tapping three times with two fingers will save a screenshot to your Photos. One of several user selectable window functions can be used: Rectangular Hanning Hamming Tukey Cosine Lanczos Blackman
Flipper Mobile App
Manage your portable multi-tool device data, organize digital keys, and share them with a community of users. This application enhances the functionality of your device for various geeky projects.
- Manage device data
- Organize digital keys
- Share keys with users
- Community sharing
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Flipper Zero is a portable multi-tool for geeks in a toy-like body. This app helps to manage your data on the device, organize keys and share them with other Flipper Zero users.
Screenshots
Verdict
The clearest difference is price: Flipper Mobile App at Free against Audio Spectrum Analyzer's $3.99. Flipper Mobile App also leads on rating (4.5 vs 3.9) and update cadence (monthly vs every 7 months). Audio Spectrum Analyzer's advantage is device support (3 vs 1) and iOS requirement (6.0 vs 16.0). On 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
Flipper Mobile App is free to download; Audio Spectrum Analyzer costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Flipper Mobile App holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: Flipper Mobile App has 305 ratings behind it against 52, so its average is the more settled of the two. Written reviews point the same way: 54% of Audio Spectrum Analyzer's written reviews are positive against 69% of Flipper Mobile App's.
Audio Spectrum Analyzer ships an update every 7 months, Flipper Mobile App monthly. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.
| Parameter | Audio Spectrum Analyzer | Flipper Mobile App |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 3.9 (52 ratings) | 4.5 (305 ratings) — better |
| Positive reviews | 54.4% of reviews | 69.3% of reviews — better |
| Number of ratings | 52 | 305 — better |
| Update frequency | Every 7 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 6.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 1 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Black Cat Systems | Flipper Devices Inc. |
Customer experience
Audio Spectrum Analyzer
Flipper Mobile App
User reviews
Audio Spectrum Analyzer
From 52 App Store ratingsWhat we love
- 👍 Handy for recording studio
- 👍 Excellent for analyzing noise
- 👍 Intuitive and simple
- 👍 Great for tuning
- 👍 Accurate on iPad mini
Room to improve
- 👎 Does not work with newer iPhones
- 👎 Not updated in years
- 👎 Stopped working quickly
- 👎 Sold with false pretenses
- 👎 Extremely slow on iPhone 7
Flipper Mobile App
From 305 App Store ratingsWhat we love
- 👍 Great app for installing and updating Flipper Zero
- 👍 Useful for controlling Flipper Zero remotely
- 🚀 Efficient firmware and app updates
- 👍 Intuitive and user-friendly interface
- 👍 Helpful for managing Flipper Zero files and apps
Room to improve
- 🐛 Occasional crashes or freezes
- 🐛 Compatibility issues with custom firmware
- 🐛 App download section not always working
- 🔋 Bluetooth connection can drain phone battery
- 🐛 Difficulty reconnecting after disconnecting
Bugs and requests
Audio Spectrum Analyzer
Reported bugs
14 issues- No way to exit on iPhones without Home button
- Doesn't work with iPhone XR
- Stopped working after about 3 minutes
- Zooming sometimes doesn't work
- Resuming app makes it not display frequency data
Show 9 moreShow fewer
- Cannot pinch to zoom in frequency domain
- Peak hold feature is unnecessary/freezes
- Graph disappears
- Screen update is slow
- White screen only on iPad 1
- Vertical volume scale incorrect
- Laggy controls
- Cannot see entered text
- Fatal, doesn't work, jerky
Requested features
19 requests- Running average of spectrums
- Ability to exit on iPhones without Home button
- Ability to reset peak hold with a tap
- Go to 40 kHz
- Expand instructions for filtering window
Show 14 moreShow fewer
- Zoom on Y axis (amplitude)
- Freeze spectrum and save/email
- Isolate portions of the spectrum
- Apple Watch port
- More detailed grid
- Linear vertical axis
- More control over FFT parameters
- Waterfall display
- Sliding cursor/zoom window
- Manually place markers
- Pause, peak hold, save functions
- Waterfall view
- Configurable averaging
- More functions
Flipper Mobile App
Reported bugs
5 issues- Firmware update process sometimes causes Bluetooth, SubGHz, or NFC issues
- App crashes when trying to access the App Store section
- Keyboard not showing up when pairing code is requested
- Widgets not working on iOS 16
- Remote control feature has input lag
Requested features
9 requests- More interactive features (e.g., sleeping dolphin, talking dolphin)
- Ability to download different firmware versions directly in the app
- Support for managing multiple Flipper Zero devices
- Folder support in SubGHz catalog
- Apple Watch companion app
Show 4 moreShow fewer
- Shortcuts integration for payloads
- Notification system for app updates
- Ability to edit and move files/folders on the Flipper Zero
- Ducky script compiler in the mobile app
In-app purchases
Audio Spectrum Analyzer
No in-app purchases
Flipper Mobile App
No in-app purchases
Questions
Is Audio Spectrum Analyzer free?
Is Flipper Mobile App free?
Which has better reviews, Audio Spectrum Analyzer or Flipper Mobile App?
Do Audio Spectrum Analyzer or Flipper Mobile App have ads?
Which is updated more often, Audio Spectrum Analyzer or Flipper Mobile App?
Other comparisons
