# B vs BJT Master 匠

The clearest difference is update cadence: BJT Master 匠 at every 5 days against B's fortnightly. B's advantage is iOS requirement (9.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

B ships an update fortnightly, BJT Master 匠 every 5 days. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | B | BJT Master 匠 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | — | Free |
| Size | 24 MB | 1 MB |
| Requires iOS | **9.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Tho Trong Nguyen](https://appshunter.io/developer/1093690555) | [LAP DAO DUY](https://appshunter.io/developer/6793395013) |

## What reviewers say

### B

[App page](https://appshunter.io/ios/app/b-learning/id1519150149)

**Features:** macOS Compatibility

**In-app purchases:** none


### BJT Master 匠

[App page](https://appshunter.io/ios/app/bjt-master/id6793395011)

Master the Business Japanese Proficiency Test (BJT) with comprehensive, teacher-created content. Practice vocabulary, situational responses, and listening comprehension with detailed explanations and progress tracking. Prepare effectively for your career in Japanese companies.

**Highlights:** 1,977 business Japanese vocabulary words, 145 job-related topics, 292 practice questions with explanations, 115 workplace scenarios, Flashcards with pronunciation, Simulated timed exams, Listening comprehension exercises

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

**In-app purchases:** none


## Frequently asked questions

### Is B free?

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

### Is BJT Master 匠 free?

BJT Master 匠 is free to download, with no in-app purchases.

### Do B or BJT Master 匠 have ads?

Neither B nor BJT Master 匠 shows ads.

### Which is updated more often, B or BJT Master 匠?

B ships an update fortnightly, and BJT Master 匠 every 5 days. Most recently, B was updated on October 7, 2026 and BJT Master 匠 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.*