# VIETNAM AUTOMATIC vs JSI One

The clearest difference is update cadence: VIETNAM AUTOMATIC at every 5 days against JSI One'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.

VIETNAM AUTOMATIC ships an update every 5 days, JSI One every 3 weeks. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | VIETNAM AUTOMATIC | JSI One |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 53 MB | 213 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Thi Hoai Phuong Nguyen](https://appshunter.io/developer/1782241900) | [Công Ty TNHH Chứng Khoán Nhật Bản](https://appshunter.io/developer/1835855177) |

## What reviewers say

### VIETNAM AUTOMATIC

[App page](https://appshunter.io/ios/app/vietnam-automatic/id6738986620)

**Features:** macOS Compatibility

**In-app purchases:** none


### JSI One

[App page](https://appshunter.io/ios/app/jsi-one/id6751571648)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is VIETNAM AUTOMATIC free?

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

### Is JSI One free?

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

### Do VIETNAM AUTOMATIC or JSI One have ads?

Neither VIETNAM AUTOMATIC nor JSI One shows ads.

### Which is updated more often, VIETNAM AUTOMATIC or JSI One?

VIETNAM AUTOMATIC ships an update every 5 days, and JSI One every 3 weeks. Most recently, VIETNAM AUTOMATIC was updated on October 9, 2026 and JSI One on October 14, 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.*