# Smart Guard Control vs DuLink

The clearest difference is update cadence: DuLink at fortnightly against Smart Guard Control's every 11 months. 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.

Smart Guard Control ships an update every 11 months, DuLink fortnightly. The most recent releases landed on October 6, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Smart Guard Control | DuLink |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Size | 1 MB | 61 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [GPS SYSTEMS BULGARIA OOD](https://appshunter.io/developer/1528943293) | [Dunext Technology Suzhou Co., Ltd.](https://appshunter.io/developer/1891965117) |

## What reviewers say

### Smart Guard Control

[App page](https://appshunter.io/ios/app/smart-guard-control/id1528943291)

**Features:** macOS Compatibility

**In-app purchases:** none


### DuLink

[App page](https://appshunter.io/ios/app/dulink/id6739234591)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Guard Control free?

Smart Guard Control is free to download, with no in-app purchases.

### Is DuLink free?

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

### Do Smart Guard Control or DuLink have ads?

Neither Smart Guard Control nor DuLink shows ads.

### Which is updated more often, Smart Guard Control or DuLink?

Smart Guard Control ships an update every 11 months, and DuLink fortnightly. Most recently, Smart Guard Control was updated on October 6, 2026 and DuLink on September 28, 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.*