# DexSpeak vs Castlingo

The clearest difference is review sentiment: DexSpeak at 100% against Castlingo's 50%. DexSpeak also leads on rating (5.0 vs 4.3) and ads (none vs shown). Castlingo's advantage is update cadence (every 4 days vs every 9 days). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. DexSpeak sells 3 in-app purchases, starting at $5.99 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.

DexSpeak holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 9 and 3 respectively. Written reviews point the same way: 100% of DexSpeak's written reviews are positive against 50% of Castlingo's.

DexSpeak ships an update every 9 days, Castlingo every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | DexSpeak | Castlingo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/dexspeak/id6754247957/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/castlingo/id6762072277/reviews) |
| Number of ratings | **9** | 3 |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 4 days** |
| Monetization | Freemium | Freemium |
| Size | 509 MB | 30 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Zihan Lin](https://appshunter.io/developer/6805457762) | [支涛 黄](https://appshunter.io/developer/1891134742) |

## What reviewers say

### DexSpeak

[App page](https://appshunter.io/ios/app/dexspeak/id6754247957)

Improve English fluency by reading authentic texts and analyzing vocabulary in context. Build personalized word lists and review them with spaced repetition to gain deeper language intuition.

**Highlights:** Contextual reading of authentic texts, Interactive vocabulary analysis, Personalized word collections, Spaced repetition review, Deeper language intuition development

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DexSpeak Pro Monthly | $5.99 | per month |
| DexSpeak Pro Yearly | $49.99 | per year |
| DexSpeak Lifetime | $119.99 | 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 DexSpeak free?

DexSpeak 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, DexSpeak or Castlingo?

DexSpeak is rated higher. DexSpeak averages 5.0 out of 5 from 9 ratings, while Castlingo averages 4.3 from 3 ratings.

### Do DexSpeak or Castlingo have ads?

Castlingo shows ads; DexSpeak does not.

### Which is updated more often, DexSpeak or Castlingo?

DexSpeak ships an update every 9 days, and Castlingo every 4 days. Most recently, DexSpeak was updated on October 24, 2026 and Castlingo on October 24, 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.*