# Audio Spectrum Analyzer vs Flipper Mobile App

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.

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.

## The numbers

| Metric | Audio Spectrum Analyzer | Flipper Mobile App |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [3.9 (52 ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer/id373620982/reviews) | **[4.5 (305 ratings)](https://appshunter.io/ios/app/flipper-mobile-app/id1534655259/reviews)** |
| Number of ratings | 52 | **305** |
| Positive reviews | 54.4% of reviews | **69.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 17 MB |
| Requires iOS | **6.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Black Cat Systems](https://appshunter.io/developer/301047032) | [Flipper Devices Inc.](https://appshunter.io/developer/1534655261) |

## What reviewers say

### Audio Spectrum Analyzer

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer/id373620982)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Handy for recording studio
- 👍 Excellent for analyzing noise
- 👍 Intuitive and simple
- 👍 Great for tuning
- 👍 Accurate on iPad mini

**What reviewers complain about**

- 👎 Does not work with newer iPhones
- 👎 Not updated in years
- 👎 Stopped working quickly
- 👎 Sold with false pretenses
- 👎 Extremely slow on iPhone 7

**Reported bugs**

- 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

**Requested features**

- 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


### Flipper Mobile App

[App page](https://appshunter.io/ios/app/flipper-mobile-app/id1534655259)

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.

**Highlights:** Manage device data, Organize digital keys, Share keys with users, Community sharing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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**

- 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


## Frequently asked questions

### Is Audio Spectrum Analyzer free?

Audio Spectrum Analyzer costs $3.99, with no in-app purchases.

### Is Flipper Mobile App free?

Flipper Mobile App is free to download, with no in-app purchases.

### Which has better reviews, Audio Spectrum Analyzer or Flipper Mobile App?

Flipper Mobile App is rated higher. Audio Spectrum Analyzer averages 3.9 out of 5 from 52 ratings, while Flipper Mobile App averages 4.5 from 305 ratings.

### Do Audio Spectrum Analyzer or Flipper Mobile App have ads?

Neither Audio Spectrum Analyzer nor Flipper Mobile App shows ads.

### Which is updated more often, Audio Spectrum Analyzer or Flipper Mobile App?

Audio Spectrum Analyzer ships an update every 7 months, and Flipper Mobile App monthly. Most recently, Audio Spectrum Analyzer was updated on September 30, 2026 and Flipper Mobile App on October 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*