# BD vs 樂奇英語

The clearest difference is update cadence: BD at every 4 months against 樂奇英語's every 31 months. 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.

BD ships an update every 4 months, 樂奇英語 every 31 months. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | BD | 樂奇英語 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 31 months |
| Monetization | Free | — |
| Size | 11 MB | 123 MB |
| Requires iOS | 13.0 | **12** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BD MEDIA MULTIMEDIA CO.,LTD.](https://appshunter.io/developer/1560300017) | [Chi Hsien Lai](https://appshunter.io/developer/1039759515) |

## What reviewers say

### BD

[App page](https://appshunter.io/ios/app/bd-p/id1560300015)

This application allows users to view encrypted audio and video files from a specific USB drive, facilitating learning and course consumption. It employs advanced encryption and anti-piracy measures to protect intellectual property.

**Highlights:** View encrypted audio/video files, Supports various file formats, Proprietary encryption algorithm, USB drive key authentication, Anti-screen recording technology, Prevents unauthorized sharing

**In-app purchases:** none


### 樂奇英語

[App page](https://appshunter.io/ios/app/id6444693994)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BD free?

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

### Is 樂奇英語 free?

樂奇英語 is free to download, with no in-app purchases.

### Do BD or 樂奇英語 have ads?

Neither BD nor 樂奇英語 shows ads.

### Which is updated more often, BD or 樂奇英語?

BD ships an update every 4 months, and 樂奇英語 every 31 months. Most recently, BD was updated on October 2, 2026 and 樂奇英語 on October 3, 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.*