# LangFit vs Deep In

The clearest difference is in-app purchases: LangFit at none against Deep In's 7. Deep In's advantage is update cadence (every 4 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Deep In sells 7 in-app purchases, starting at $7.00 per month. LangFit asks for nothing beyond the download.

LangFit ships an update every 2 months, Deep In every 4 days. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | LangFit | Deep In |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/deep-in-language-immersion/id6784153530/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 26 MB | 79 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Andrii Dudar](https://appshunter.io/developer/1559703751) | [DEEP IN](https://appshunter.io/developer/6784153532) |

## What reviewers say

### LangFit

[App page](https://appshunter.io/ios/app/langfit/id1559703749)

**Features:** Vision Pro support

**In-app purchases:** none


### Deep In

[App page](https://appshunter.io/ios/app/deep-in-language-immersion/id6784153530)

Immerse yourself in a new language by watching real YouTube videos and analyzing spoken phrases. This app provides interactive subtitles and vocabulary review to help you understand and speak like a native. Explore content on any topic you love, at your own pace.

**Highlights:** Watch real YouTube videos, Interactive subtitles, Vocabulary review and flashcards, Practice speaking with AI, Personalized content catalog, Learn at your own pace

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deep In · Lite | $7.00 | per month |
| Basic | $14.00 | per month |
| Deep | $21.00 | per month |
| Deep In · Lite | $35.00 | per 6 months |
| Deep In · Lite | $60.00 | per year |
| Deep — 6 Months | $95.00 | per 6 months |
| Deep — Yearly | $134.99 | per year |


## Frequently asked questions

### Is LangFit free?

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

### Is Deep In free?

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

### Do LangFit or Deep In have ads?

Neither LangFit nor Deep In shows ads.

### Which is updated more often, LangFit or Deep In?

LangFit ships an update every 2 months, and Deep In every 4 days. Most recently, LangFit was updated on October 27, 2026 and Deep In on October 31, 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.*