# ShadowVoice vs Onsei

The clearest difference is update cadence: ShadowVoice at daily against Onsei's every 10 days. Onsei's advantage is iOS requirement (15.1 vs 17.2). On price, ads, in-app purchases and device support there is nothing between them.

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

ShadowVoice ships an update daily, Onsei every 10 days. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | ShadowVoice | Onsei |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shadowvoice/id6756198926/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 10 days |
| Monetization | Free | — |
| Size | 84 MB | 33 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Junhua Shi](https://appshunter.io/developer/1859086701) | [鑫 陈](https://appshunter.io/developer/1709457072) |

## What reviewers say

### ShadowVoice

[App page](https://appshunter.io/ios/app/shadowvoice/id6756198926)

Practice English pronunciation using the shadowing method. Listen to native speakers, repeat, and see your voice visualized in real-time. Get instant feedback and track your progress to sound more natural.

**Highlights:** Real-time voice comparison with waveform display, Sidetone monitoring for clear self-hearing, Sentence-by-sentence practice breakdown, Speech recognition for instant transcription, Progress tracking of practice sessions

**Features:** macOS Compatibility

**In-app purchases:** none


### Onsei

[App page](https://appshunter.io/ios/app/onsei/id6761715885)

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

**In-app purchases:** none


## Frequently asked questions

### Is ShadowVoice free?

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

### Is Onsei free?

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

### Do ShadowVoice or Onsei have ads?

Neither ShadowVoice nor Onsei shows ads.

### Which is updated more often, ShadowVoice or Onsei?

ShadowVoice ships an update daily, and Onsei every 10 days. Most recently, ShadowVoice was updated on October 3, 2026 and Onsei on October 6, 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.*