# VOS vs iGiaoThong

The clearest difference is update cadence: iGiaoThong at every 3 days against VOS's every 3 months. VOS's advantage is iOS requirement (13.0 vs 15.1). 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.

VOS ships an update every 3 months, iGiaoThong every 3 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | VOS | iGiaoThong |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 65 MB | 33 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [VETC ELECTRONIC TOLL COLLECTION COMPANY LIMITED](https://appshunter.io/developer/1479959421) | [Lilytech Ltd](https://appshunter.io/developer/6820818814) |

## What reviewers say

### VOS

[App page](https://appshunter.io/ios/app/vos/id6747154987)

**Features:** macOS Compatibility

**In-app purchases:** none


### iGiaoThong

[App page](https://appshunter.io/ios/app/igiaothong/id6820818810)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VOS free?

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

### Is iGiaoThong free?

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

### Do VOS or iGiaoThong have ads?

Neither VOS nor iGiaoThong shows ads.

### Which is updated more often, VOS or iGiaoThong?

VOS ships an update every 3 months, and iGiaoThong every 3 days. Most recently, VOS was updated on October 28, 2026 and iGiaoThong on October 24, 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.*