# 影子跟读Pro vs Castlingo

The clearest difference is ads: 影子跟读Pro at none against Castlingo's shown. 影子跟读Pro also leads on rating (4.7 vs 4.3) and device support (3 vs 1). Castlingo's advantage is update cadence (every 4 days vs every 11 days). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. 影子跟读Pro sells 4 in-app purchases, starting at $2.99 per month and Castlingo sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

影子跟读Pro holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

影子跟读Pro ships an update every 11 days, Castlingo every 4 days. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 影子跟读Pro | Castlingo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/pro/id6755884864/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/castlingo/id6762072277/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 days | **Every 4 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 287 MB | 30 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [莹 邓](https://appshunter.io/developer/1711508379) | [支涛 黄](https://appshunter.io/developer/1891134742) |

## What reviewers say

### 影子跟读Pro

[App page](https://appshunter.io/ios/app/pro/id6755884864)

Enhance language learning with immersive video following. This tool offers smart subtitles, custom material import, and AI-powered pronunciation feedback to overcome common learning hurdles. It supports a wide range of video formats and allows flexible speed control for effective practice.

**Highlights:** Video OCR smart subtitle recognition, Smart subtitle translation, Full format compatibility, Subtitle point lookup, Precise control and loop playback, Flexible speed adjustment, AI voice evaluation

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $2.99 | per month |
| 季度会员 | $6.99 | per 3 months |
| 年度会员 | $24.99 | per year |
| 终身会员 | $59.99 | one-time |


### Castlingo

[App page](https://appshunter.io/ios/app/castlingo/id6762072277)

Learn English through engaging YouTube videos and AI-generated podcasts with meticulously crafted bilingual subtitles. Practice pronunciation, build vocabulary with interactive games, and master sentence structures for natural language acquisition.

**Highlights:** Bilingual subtitles with word-level karaoke, AI-generated daily podcasts with 5-pass listening method, Interactive vocabulary games, Sentence structure explanations, Global search for videos and podcasts, Offline audio playback

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Castlingo Pro (Monthly) | $12.99 | per month |
| Castlingo Pro (Yearly) | $99.99 | per year |


## Frequently asked questions

### Is 影子跟读Pro free?

影子跟读Pro is free to download, with in-app purchases available.

### Is Castlingo free?

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

### Which has better reviews, 影子跟读Pro or Castlingo?

影子跟读Pro is rated higher. 影子跟读Pro averages 4.7 out of 5 from 3 ratings, while Castlingo averages 4.3 from 3 ratings.

### Do 影子跟读Pro or Castlingo have ads?

Castlingo shows ads; 影子跟读Pro does not.

### Which is updated more often, 影子跟读Pro or Castlingo?

影子跟读Pro ships an update every 11 days, and Castlingo every 4 days. Most recently, 影子跟读Pro was updated on October 6, 2026 and Castlingo on October 4, 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.*