# PowerMaster Cloud vs Emerge Power OnSiteMonitor

The clearest difference is iOS requirement: PowerMaster Cloud at 9.0 against Emerge Power OnSiteMonitor's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on July 31, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | PowerMaster Cloud | Emerge Power OnSiteMonitor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/powermaster-cloud/id1499054894/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 77 MB | 18 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Neuropower (M) Sdn Bhd](https://appshunter.io/developer/1499054892) | [Emerge Power Solutions, LLC](https://appshunter.io/developer/1738876272) |

## What reviewers say

### PowerMaster Cloud

[App page](https://appshunter.io/ios/app/powermaster-cloud/id1499054894)

Monitor your Uninterruptible Power Supply (UPS) status remotely and receive instant event notifications. The app provides a comprehensive overview of power, battery, and load conditions, supporting multiple UPS devices.

**Highlights:** Real-time UPS status overview, Event and status logging, Multiple UPS monitoring, Instant event notifications, Multi-language support

**Features:** macOS Compatibility

**In-app purchases:** none


### Emerge Power OnSiteMonitor

[App page](https://appshunter.io/ios/app/emerge-power-onsitemonitor/id6480398161)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PowerMaster Cloud free?

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

### Is Emerge Power OnSiteMonitor free?

Emerge Power OnSiteMonitor is free to download, with no in-app purchases.

### Do PowerMaster Cloud or Emerge Power OnSiteMonitor have ads?

Neither PowerMaster Cloud nor Emerge Power OnSiteMonitor shows ads.

### Which is updated more often, PowerMaster Cloud or Emerge Power OnSiteMonitor?

PowerMaster Cloud ships an update every 3 months, and Emerge Power OnSiteMonitor every 3 months. Most recently, PowerMaster Cloud was updated on July 31, 2026 and Emerge Power OnSiteMonitor on September 16, 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.*