# IGP雲端監控系統 vs eMessage

The clearest difference is update cadence: IGP雲端監控系統 at every 9 days against eMessage's monthly. IGP雲端監控系統 also leads on iOS requirement (13.0 vs 15.6). 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.

IGP雲端監控系統 ships an update every 9 days, eMessage monthly. The most recent releases landed on September 10, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | IGP雲端監控系統 | eMessage |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Size | 25 MB | 8 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IGP](https://appshunter.io/developer/1582578581) | [Jiann Rong Lin](https://appshunter.io/developer/1247802367) |

## What reviewers say

### IGP雲端監控系統

[App page](https://appshunter.io/ios/app/igp/id6738111289)

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

**In-app purchases:** none


### eMessage

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

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

**In-app purchases:** none


## Frequently asked questions

### Is IGP雲端監控系統 free?

IGP雲端監控系統 is free to download, with no in-app purchases.

### Is eMessage free?

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

### Do IGP雲端監控系統 or eMessage have ads?

Neither IGP雲端監控系統 nor eMessage shows ads.

### Which is updated more often, IGP雲端監控系統 or eMessage?

IGP雲端監控系統 ships an update every 9 days, and eMessage monthly. Most recently, IGP雲端監控系統 was updated on September 10, 2026 and eMessage on August 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.*