# eMessage vs HST Viewer 2

eMessage and HST Viewer 2 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

eMessage ships an update monthly, HST Viewer 2 every 2 months. The most recent releases landed on August 26, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | eMessage | HST Viewer 2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 8 MB | 412 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Jiann Rong Lin](https://appshunter.io/developer/1247802367) | [HUANG SHENG TECHNOLOGY CO., LTD](https://appshunter.io/developer/1699132846) |

## What reviewers say

### eMessage

[App page](https://appshunter.io/ios/app/emessage/id6740221417)

**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 eMessage free?

eMessage 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 eMessage or HST Viewer 2 have ads?

Neither eMessage nor HST Viewer 2 shows ads.

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

eMessage ships an update monthly, and HST Viewer 2 every 2 months. Most recently, eMessage was updated on August 26, 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.*