# ShadowVoice vs SentenceDeck

The clearest difference is in-app purchases: ShadowVoice at none against SentenceDeck's 3. ShadowVoice also leads on update cadence (daily vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SentenceDeck sells 3 one-off in-app purchases. ShadowVoice asks for nothing beyond the download.

ShadowVoice ships an update daily, SentenceDeck every 6 months. The most recent releases landed on September 16, 2026 and August 30, 2026 respectively.

## The numbers

| Metric | ShadowVoice | SentenceDeck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shadowvoice/id6756198926/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 6 months |
| Monetization | Free | — |
| Size | 84 MB | 10 MB |
| Requires iOS | 17.2 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Junhua Shi](https://appshunter.io/developer/1859086701) | [奇濂 任](https://appshunter.io/developer/1843376248) |

## 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


### SentenceDeck

[App page](https://appshunter.io/ios/app/sentencedeck-shadowing/id6759489049)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Credits 100 | $0.99 | one-time |
| Credits 500 | $3.99 | one-time |
| Credits 1200 | $7.99 | one-time |


## Frequently asked questions

### Is ShadowVoice free?

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

### Is SentenceDeck free?

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

### Do ShadowVoice or SentenceDeck have ads?

Neither ShadowVoice nor SentenceDeck shows ads.

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

ShadowVoice ships an update daily, and SentenceDeck every 6 months. Most recently, ShadowVoice was updated on September 16, 2026 and SentenceDeck on August 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.*