# VBDHBTC vs OneCST

The clearest difference is update cadence: OneCST at daily against VBDHBTC's every 3 weeks. 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.

VBDHBTC ships an update every 3 weeks, OneCST daily. The most recent releases landed on September 13, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | VBDHBTC | OneCST |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 45 MB | 55 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Ministry Of Finance Of Viet Nam](https://appshunter.io/developer/1600262108) | [MobiFone](https://appshunter.io/developer/437730616) |

## What reviewers say

### VBDHBTC

[App page](https://appshunter.io/ios/app/vbdhbtc/id1613459895)

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

**In-app purchases:** none


### OneCST

[App page](https://appshunter.io/ios/app/onecst/id6451189988)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VBDHBTC free?

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

### Is OneCST free?

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

### Do VBDHBTC or OneCST have ads?

Neither VBDHBTC nor OneCST shows ads.

### Which is updated more often, VBDHBTC or OneCST?

VBDHBTC ships an update every 3 weeks, and OneCST daily. Most recently, VBDHBTC was updated on September 13, 2026 and OneCST on September 22, 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.*