# Voice Spectrogram Logger vs GraphWeave

The clearest difference is in-app purchases: GraphWeave at none against Voice Spectrogram Logger's 1. GraphWeave also leads on update cadence (daily vs every 15 months). Voice Spectrogram Logger's advantage is device support (3 vs 1) and iOS requirement (15.5 vs 26.0). On price and ads there is nothing between them.

Both are free to download. Voice Spectrogram Logger sells 1 one-off in-app purchase. GraphWeave asks for nothing beyond the download.

Voice Spectrogram Logger ships an update every 15 months, GraphWeave daily. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Voice Spectrogram Logger | GraphWeave |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/voice-spectrogram-logger/id1277134462/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 15 months | **Daily** |
| Monetization | Free | — |
| Size | 7 MB | 1 MB |
| Requires iOS | **15.5** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Yukiko Iwai](https://appshunter.io/developer/965630131) | [Taiki Yamada81465561301](https://appshunter.io/developer/6783135887) |

## What reviewers say

### Voice Spectrogram Logger

[App page](https://appshunter.io/ios/app/voice-spectrogram-logger/id1277134462)

Visualize voice frequencies in a spectrogram from 20-2500Hz. Adjust display with sliders and log recordings to export as PNG files. Functions fully offline and supports background processing.

**Highlights:** Real-time voice spectrogram display, Adjustable frequency range (20-2500Hz), Zoomable spectrogram with pinch gestures, Customizable spectrogram gradation, Logging mode with history export, Offline functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


### GraphWeave

[App page](https://appshunter.io/ios/app/graphweave/id6783135885)

**In-app purchases:** none


## Frequently asked questions

### Is Voice Spectrogram Logger free?

Voice Spectrogram Logger is free to download, with in-app purchases available.

### Is GraphWeave free?

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

### Do Voice Spectrogram Logger or GraphWeave have ads?

Neither Voice Spectrogram Logger nor GraphWeave shows ads.

### Which is updated more often, Voice Spectrogram Logger or GraphWeave?

Voice Spectrogram Logger ships an update every 15 months, and GraphWeave daily. Most recently, Voice Spectrogram Logger was updated on October 2, 2026 and GraphWeave on September 30, 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.*