# AI英会話スピークバディ vs bayes_lab

The clearest difference is in-app purchases: bayes_lab at none against AI英会話スピークバディ's 15. bayes_lab also leads on update cadence (daily vs every 4 days). AI英会話スピークバディ's advantage is iOS requirement (17.0 vs 26.4). On price, ads and device support there is nothing between them.

Both are free to download. AI英会話スピークバディ sells 11 in-app purchases, starting at $24.99 per month. bayes_lab asks for nothing beyond the download.

AI英会話スピークバディ ships an update every 4 days, bayes_lab daily. The most recent releases landed on September 25, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | AI英会話スピークバディ | bayes_lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (185 ratings)](https://appshunter.io/ios/app/ai/id1129621266/reviews)** | — |
| Number of ratings | **185** | — |
| Positive reviews | 75.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | **Daily** |
| Monetization | Freemium | — |
| Size | 327 MB | 3 MB |
| Requires iOS | **17.0** | 26.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SpeakBUDDY Ltd.](https://appshunter.io/developer/633270154) | [BeeKnowledgeDesign,Inc.](https://appshunter.io/developer/1659817106) |

## What reviewers say

### AI英会話スピークバディ

[App page](https://appshunter.io/ios/app/ai/id1129621266)

Practice English conversation with an AI that offers realistic dialogue and personalized feedback. Improve speaking, listening, vocabulary, and pronunciation for daily, business, or travel scenarios. Learn at your own pace, anytime, anywhere, with over 1,000 practice situations.

**Highlights:** AI-powered realistic English conversation, Speech recognition for pronunciation and grammar feedback, Extensive library of over 1,000 real-life scenarios, Personalized learning paths based on CEFR-J levels, Flexible learning schedule, 5-15 minutes daily, Story-based learning with AI buddies, Practice listening to various English accents

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpeakBuddyプレミアムサービス | $24.99 | per month |
| 英会話・英語学習アプリスピークバディプレミアムサービス | $24.99 | per month |
| 1ヶ月プラン | $24.99 | per month |
| 3ヶ月プラン | $59.99 | per 3 months |
| SpeakBuddyプレミアムサービス - 6ヶ月プラン | $129.99 | per 6 months |
| 6ヶ月プラン | $129.99 | per 6 months |
| SpeakBuddyプレミアムサービス - 1年プラン | $179.99 | per year |
| 1年プラン | $179.99 | per year |
| 1年プラン | $199.99 | per year |
| 永久ライセンス | $499.99 | one-time |
| 永久ライセンス | $599.99 | one-time |


### bayes_lab

[App page](https://appshunter.io/ios/app/bayes-lab/id6777813012)

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

**In-app purchases:** none


## Frequently asked questions

### Is AI英会話スピークバディ free?

AI英会話スピークバディ is free to download, with in-app purchases available.

### Is bayes_lab free?

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

### Do AI英会話スピークバディ or bayes_lab have ads?

Neither AI英会話スピークバディ nor bayes_lab shows ads.

### Which is updated more often, AI英会話スピークバディ or bayes_lab?

AI英会話スピークバディ ships an update every 4 days, and bayes_lab daily. Most recently, AI英会話スピークバディ was updated on September 25, 2026 and bayes_lab on September 12, 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.*