# SmartLive Plus vs HST Viewer 2

The clearest difference is update cadence: HST Viewer 2 at every 2 months against SmartLive Plus's every 6 months. SmartLive Plus's advantage is iOS requirement (12.1 vs 15.0). 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.

SmartLive Plus ships an update every 6 months, HST Viewer 2 every 2 months. The most recent releases landed on September 17, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | SmartLive Plus | HST Viewer 2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Size | 121 MB | 412 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hi Sharp Intelligence Technology Co.,Ltd.](https://appshunter.io/developer/1640184377) | [HUANG SHENG TECHNOLOGY CO., LTD](https://appshunter.io/developer/1699132846) |

## What reviewers say

### SmartLive Plus

[App page](https://appshunter.io/ios/app/smartlive-plus/id6446193632)

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

**In-app purchases:** none


### HST Viewer 2

[App page](https://appshunter.io/ios/app/hst-viewer-2/id6752448031)

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

**In-app purchases:** none


## Frequently asked questions

### Is SmartLive Plus free?

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

### Is HST Viewer 2 free?

HST Viewer 2 is free to download, with no in-app purchases.

### Do SmartLive Plus or HST Viewer 2 have ads?

Neither SmartLive Plus nor HST Viewer 2 shows ads.

### Which is updated more often, SmartLive Plus or HST Viewer 2?

SmartLive Plus ships an update every 6 months, and HST Viewer 2 every 2 months. Most recently, SmartLive Plus was updated on September 17, 2026 and HST Viewer 2 on September 26, 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.*