# 3K Technology vs Online System

The clearest difference is update cadence: Online System at every 3 weeks against 3K Technology's every 23 months. 3K Technology's advantage is iOS requirement (12.1 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.

3K Technology ships an update every 23 months, Online System every 3 weeks. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 3K Technology | Online System |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 3 weeks** |
| Size | 72 MB | 49 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 17+ |
| Developer | [Alfredo Rodrigues dos Reis](https://appshunter.io/developer/1495365234) | [Nilton da Costa Teixeira Junior](https://appshunter.io/developer/1630212092) |

## What reviewers say

### 3K Technology

[App page](https://appshunter.io/ios/app/3k-technology/id1599821627)

**Features:** macOS Compatibility

**In-app purchases:** none


### Online System

[App page](https://appshunter.io/ios/app/online-system/id1630212090)

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

**In-app purchases:** none


## Frequently asked questions

### Is 3K Technology free?

3K Technology is free to download, with no in-app purchases.

### Is Online System free?

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

### Do 3K Technology or Online System have ads?

Neither 3K Technology nor Online System shows ads.

### Which is updated more often, 3K Technology or Online System?

3K Technology ships an update every 23 months, and Online System every 3 weeks. Most recently, 3K Technology was updated on October 3, 2026 and Online System on October 9, 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.*