# Bách Thông Đường vs KEYTECH

Bách Thông Đường and KEYTECH are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bách Thông Đường | KEYTECH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 36 MB | 69 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [BACH THONG PHARMACEUTICAL COMPANY LIMITED](https://appshunter.io/developer/1601024389) | [Bach Tuan Anh](https://appshunter.io/developer/1570579656) |

## What reviewers say

### Bách Thông Đường

[App page](https://appshunter.io/ios/app/bach-thong-uong/id1601024387)

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

**In-app purchases:** none


### KEYTECH

[App page](https://appshunter.io/ios/app/keytech/id6474772049)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bách Thông Đường free?

Bách Thông Đường is free to download, with no in-app purchases.

### Is KEYTECH free?

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

### Do Bách Thông Đường or KEYTECH have ads?

Neither Bách Thông Đường nor KEYTECH shows ads.

### Which is updated more often, Bách Thông Đường or KEYTECH?

Bách Thông Đường ships an update fortnightly, and KEYTECH fortnightly. Most recently, Bách Thông Đường was updated on October 4, 2026 and KEYTECH on October 7, 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.*