# ToneScope vs FNam FFT Spectrogram Analyzer

The clearest difference is iOS requirement: ToneScope at 17.0 against FNam FFT Spectrogram Analyzer's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ToneScope ships an update every 10 days, FNam FFT Spectrogram Analyzer every 2 weeks. The most recent releases landed on September 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | ToneScope | FNam FFT Spectrogram Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/tonescope/id6757265327/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 2 MB | 5 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Newton Niu](https://appshunter.io/developer/6777603868) | [YEON SEOB KIM](https://appshunter.io/developer/1878586254) |

## What reviewers say

### ToneScope

[App page](https://appshunter.io/ios/app/tonescope/id6757265327)

This audio analysis tool offers real-time and offline sound signal processing. It utilizes a multirate FFT for high frequency resolution and efficiency on iOS devices. All data processing is done locally, ensuring user privacy.

**Highlights:** Real-time audio analysis, Offline sound signal analysis, Multirate FFT processing, High frequency resolution, On-device processing, Local audio recording

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

**In-app purchases:** none


### FNam FFT Spectrogram Analyzer

[App page](https://appshunter.io/ios/app/fnam-fft-spectrogram-analyzer/id6759438376)

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

**In-app purchases:** none


## Frequently asked questions

### Is ToneScope free?

ToneScope is free to download, with no in-app purchases.

### Is FNam FFT Spectrogram Analyzer free?

FNam FFT Spectrogram Analyzer is free to download, with no in-app purchases.

### Do ToneScope or FNam FFT Spectrogram Analyzer have ads?

Neither ToneScope nor FNam FFT Spectrogram Analyzer shows ads.

### Which is updated more often, ToneScope or FNam FFT Spectrogram Analyzer?

ToneScope ships an update every 10 days, and FNam FFT Spectrogram Analyzer every 2 weeks. Most recently, ToneScope was updated on September 1, 2026 and FNam FFT Spectrogram Analyzer on September 9, 2026.

---

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