# Easy Audio Spectrogram vs Mandarin Assistant HSK Widget

The clearest difference is price: Easy Audio Spectrogram at Free against Mandarin Assistant HSK Widget's $1.99. Mandarin Assistant HSK Widget's advantage is update cadence (every 5 days vs every 3 weeks) and iOS requirement (17.5 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Easy Audio Spectrogram is free to download; Mandarin Assistant HSK Widget costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Easy Audio Spectrogram ships an update every 3 weeks, Mandarin Assistant HSK Widget every 5 days. The most recent releases landed on September 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Easy Audio Spectrogram | Mandarin Assistant HSK Widget |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 4 MB | 141 MB |
| Requires iOS | 26.0 | **17.5** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Chen Gong](https://appshunter.io/developer/1896464770) | [Vertex8](https://appshunter.io/developer/6801617409) |

## What reviewers say

### Easy Audio Spectrogram

[App page](https://appshunter.io/ios/app/easy-audio-spectrogram/id6772611741)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mandarin Assistant HSK Widget

[App page](https://appshunter.io/ios/app/mandarin-assistant-hsk-widget/id6801617407)

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

**In-app purchases:** none


## Frequently asked questions

### Is Easy Audio Spectrogram free?

Easy Audio Spectrogram is free to download, with no in-app purchases.

### Is Mandarin Assistant HSK Widget free?

Mandarin Assistant HSK Widget costs $1.99, with no in-app purchases.

### Do Easy Audio Spectrogram or Mandarin Assistant HSK Widget have ads?

Neither Easy Audio Spectrogram nor Mandarin Assistant HSK Widget shows ads.

### Which is updated more often, Easy Audio Spectrogram or Mandarin Assistant HSK Widget?

Easy Audio Spectrogram ships an update every 3 weeks, and Mandarin Assistant HSK Widget every 5 days. Most recently, Easy Audio Spectrogram was updated on September 16, 2026 and Mandarin Assistant HSK Widget on October 5, 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.*