# iKnow! vs ビジネス英会話EpisodeⅡ

The clearest difference is price: iKnow! at Free against ビジネス英会話EpisodeⅡ's $0.99. iKnow! also leads on update cadence (every 5 weeks vs every 3 months). ビジネス英会話EpisodeⅡ's advantage is in-app purchases (none vs 10) and iOS requirement (12.3 vs 14.0). On ads and device support there is nothing between them.

iKnow! is free to download; ビジネス英会話EpisodeⅡ costs $0.99 up front. iKnow! sells 10 one-off in-app purchases. ビジネス英会話EpisodeⅡ asks for nothing beyond the download.

iKnow! ships an update every 5 weeks, ビジネス英会話EpisodeⅡ every 3 months. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | iKnow! | ビジネス英会話EpisodeⅡ |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (491 ratings)](https://appshunter.io/ios/app/iknow/id417713473/reviews)** | — |
| Number of ratings | **491** | — |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 484 MB |
| Requires iOS | 14.0 | **12.3** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DMM.com LLC](https://appshunter.io/developer/373765747) | [Osamu Koyama](https://appshunter.io/developer/1480684265) |

## What reviewers say

### iKnow!

[App page](https://appshunter.io/ios/app/iknow/id417713473)

Master Japanese, Chinese, and English with this app's adaptive learning engine. It offers multiple study modes and synchronizes your progress across devices for flexible learning. Ideal for anyone looking to efficiently acquire new vocabulary and sentence structures.

**Highlights:** Adaptive learning engine, Spaced rehearsal pattern, Five study modes, Vocabulary and sentence mastery, Progress synchronization, Audio playback with speed control

**Features:** iMessage stickers, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Month Plan | $23.99 | one-time |
| 12 Month Plan | $39.99 | one-time |
| 12+1 Month Plan | $39.99 | one-time |
| 6 Month Plan | $47.99 | one-time |
| 6+1 Month Plan | $47.99 | one-time |
| 12+3 Month Plan | $54.99 | one-time |
| 12 Month Plan | $59.99 | one-time |
| 12 Month Plan | $64.99 | one-time |
| 12+1 Month Plan | $64.99 | one-time |
| 12 Month Plan | $69.99 | one-time |

**What reviewers like**

- 🚀 Excellent for vocabulary learning
- 👍 Great for learning Japanese and Chinese
- 👍 Effective spaced repetition system
- 👍 Useful example sentences and audio
- 👍 Convenient for studying on the go

**What reviewers complain about**

- 🐛 Stability issues with recent updates
- 🐛 Crashes and freezes reported
- 🐛 Audio playback problems
- 🔒 Subscription-based model
- 👎 Limited customization options

**Reported bugs**

- Crashes on startup
- Blank screens during multiple-choice questions
- Issues with typing answers and registering input
- Audio not playing for some example sentences

**Requested features**

- Add more languages beyond Japanese and Chinese
- Improve community course integration
- Implement a dark mode
- Add more example sentences per word
- Provide an option to learn without kanji


### ビジネス英会話EpisodeⅡ

[App page](https://appshunter.io/ios/app/episode/id6448784057)

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

**In-app purchases:** none


## Frequently asked questions

### Is iKnow! free?

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

### Is ビジネス英会話EpisodeⅡ free?

ビジネス英会話EpisodeⅡ costs $0.99, with no in-app purchases.

### Do iKnow! or ビジネス英会話EpisodeⅡ have ads?

Neither iKnow! nor ビジネス英会話EpisodeⅡ shows ads.

### Which is updated more often, iKnow! or ビジネス英会話EpisodeⅡ?

iKnow! ships an update every 5 weeks, and ビジネス英会話EpisodeⅡ every 3 months. Most recently, iKnow! was updated on October 28, 2026 and ビジネス英会話EpisodeⅡ on October 25, 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.*