# IOconnect vs Quan Trắc Online

The clearest difference is update cadence: Quan Trắc Online at every 2 weeks against IOconnect's every 20 months. Quan Trắc Online also leads on iOS requirement (12.0 vs 14.0). 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.

IOconnect ships an update every 20 months, Quan Trắc Online every 2 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | IOconnect | Quan Trắc Online |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 weeks** |
| Size | 38 MB | 47 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Tuan Pham](https://appshunter.io/developer/6804397325) | [VietMap](https://appshunter.io/developer/461714641) |

## What reviewers say

### IOconnect

[App page](https://appshunter.io/ios/app/ioconnect/id6451093863)

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

**In-app purchases:** none


### Quan Trắc Online

[App page](https://appshunter.io/ios/app/quan-trac-online/id6749677107)

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

**In-app purchases:** none


## Frequently asked questions

### Is IOconnect free?

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

### Is Quan Trắc Online free?

Quan Trắc Online is free to download, with no in-app purchases.

### Do IOconnect or Quan Trắc Online have ads?

Neither IOconnect nor Quan Trắc Online shows ads.

### Which is updated more often, IOconnect or Quan Trắc Online?

IOconnect ships an update every 20 months, and Quan Trắc Online every 2 weeks. Most recently, IOconnect was updated on November 3, 2026 and Quan Trắc Online on October 30, 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.*