# Spectrum Analyzer+ FFT vs Frequency Analyzer

The clearest difference is in-app purchases: Spectrum Analyzer+ FFT at none against Frequency Analyzer's 2. Frequency Analyzer's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Frequency Analyzer sells 2 in-app purchases, starting at $4.99 per month. Spectrum Analyzer+ FFT asks for nothing beyond the download.

Spectrum Analyzer+ FFT ships an update weekly, Frequency Analyzer every 10 days. The most recent releases landed on September 3, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Spectrum Analyzer+ FFT | Frequency Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-plus-fft/id6760830858/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Ad-supported | — |
| Size | 69 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) | [RAMAZAN USEN](https://appshunter.io/developer/1783434185) |

## What reviewers say

### Spectrum Analyzer+ FFT

[App page](https://appshunter.io/ios/app/spectrum-analyzer-plus-fft/id6760830858)

This utility transforms your device into a real-time audio frequency analyzer. It visualizes sound frequencies from 20 Hz to 20 kHz using the microphone, displaying amplitude and peak frequencies. It's designed for musicians, audio engineers, and sound enthusiasts.

**Highlights:** Real-time FFT audio spectrum visualization, Frequency range 20 Hz to 20 kHz, Peak frequency detection, Average dB level per band, Adjustable dB range, Dark theme

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

**In-app purchases:** none


### Frequency Analyzer

[App page](https://appshunter.io/ios/app/frequency-analyzer/id6762404295)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpectraLab Pro Monthly | $4.99 | per month |
| SpectraLab Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is Spectrum Analyzer+ FFT free?

Spectrum Analyzer+ FFT is free to download, with no in-app purchases.

### Is Frequency Analyzer free?

Frequency Analyzer is free to download, with in-app purchases available.

### Do Spectrum Analyzer+ FFT or Frequency Analyzer have ads?

Spectrum Analyzer+ FFT shows ads; Frequency Analyzer does not.

### Which is updated more often, Spectrum Analyzer+ FFT or Frequency Analyzer?

Spectrum Analyzer+ FFT ships an update weekly, and Frequency Analyzer every 10 days. Most recently, Spectrum Analyzer+ FFT was updated on September 3, 2026 and Frequency Analyzer on September 12, 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.*