eMessage vs HST Viewer 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eMessage
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接收並儲存接收通知，依供日後查詢
HST Viewer 2
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皇昇牌DVR監控主機行動監控軟體，支援P2P與PPPOE功能，可隨時遠端監控及回放影像。當事件與警報觸發可立即收到推播通知
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | eMessage | HST Viewer 2 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 412 MB |
| Age rating | 4+ | 17+ |
| Developer | Jiann Rong Lin | HUANG SHENG TECHNOLOGY CO., LTD |
In-app purchases
eMessage
No in-app purchases
HST Viewer 2
No in-app purchases
