# SMART HUD vs X LINK

The clearest difference is update cadence: X LINK at every 2 months against SMART HUD's every 4 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 HUD ships an update every 4 months, X LINK every 2 months. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SMART HUD | X LINK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 4 MB | 37 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RoadPia Co., Ltd.](https://appshunter.io/developer/366252913) | [IROAD MOBILITY Co., LTD](https://appshunter.io/developer/878485292) |

## What reviewers say

### SMART HUD

[App page](https://appshunter.io/ios/app/smart-hud/id1603048002)

**Features:** macOS Compatibility

**In-app purchases:** none


### X LINK

[App page](https://appshunter.io/ios/app/x-link/id6740760369)

**In-app purchases:** none


## Frequently asked questions

### Is SMART HUD free?

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

### Is X LINK free?

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

### Do SMART HUD or X LINK have ads?

Neither SMART HUD nor X LINK shows ads.

### Which is updated more often, SMART HUD or X LINK?

SMART HUD ships an update every 4 months, and X LINK every 2 months. Most recently, SMART HUD was updated on October 6, 2026 and X LINK on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*