# 英語学習 vs Lockeigo

The clearest difference is in-app purchases: Lockeigo at none against 英語学習's 3. Lockeigo also leads on review sentiment (100% vs 90%). 英語学習's advantage is ads (none vs shown) and device support (3 vs 1). On price, update cadence and monetization model there is nothing between them.

Both are free to download. 英語学習 sells 3 in-app purchases, starting at $5.99 per month. Lockeigo asks for nothing beyond the download.

英語学習 ships an update every 4 days, Lockeigo every 2 days. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 英語学習 | Lockeigo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 90.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 145 MB | 22 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ATSUSHI KIMURA](https://appshunter.io/developer/1829870349) | [yohei ueda](https://appshunter.io/developer/1881263178) |

## What reviewers say

### 英語学習

[App page](https://appshunter.io/ios/app/boostai/id6749287559)

This AI-powered app offers instant English writing feedback, detailed explanations, and AI chat for deeper understanding. It supports various writing styles and learning goals, helping users improve their English proficiency anytime, anywhere.

**Highlights:** Instant AI essay correction, Detailed explanations for errors, Handwriting recognition for essays, AI chat for clarification, Learning history management, Diverse question formats, Flashcards and English news

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Boost Pro 月額プラン | $5.99 | per month |
| 3ヶ月 | $11.99 | per 3 months |
| Boost Pro 年額プラン | $39.99 | per year |


### Lockeigo

[App page](https://appshunter.io/ios/app/lockeigo/id6792405907)

Enhance your English vocabulary by learning new expressions directly from your iPhone's lock screen. Create custom flashcards, organize them into folders, and receive personalized review reminders. Unlock advanced features and customization options with a subscription.

**Highlights:** Create custom English flashcards, Organize vocabulary into folders, Display cards in Live Activities and widgets, Personalized review reminders, Customizable themes and fonts, Search words, meanings, and examples

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

**In-app purchases:** none


## Frequently asked questions

### Is 英語学習 free?

英語学習 is free to download, with in-app purchases available.

### Is Lockeigo free?

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

### Do 英語学習 or Lockeigo have ads?

Lockeigo shows ads; 英語学習 does not.

### Which is updated more often, 英語学習 or Lockeigo?

英語学習 ships an update every 4 days, and Lockeigo every 2 days. Most recently, 英語学習 was updated on October 16, 2026 and Lockeigo 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.*