# NIMBUS Watch Private Cloud vs SMS Alert

The clearest difference is update cadence: NIMBUS Watch Private Cloud at every 3 months against SMS Alert's every 14 months. SMS Alert's advantage is iOS requirement (9.0 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.

NIMBUS Watch Private Cloud ships an update every 3 months, SMS Alert every 14 months. The most recent releases landed on September 7, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | NIMBUS Watch Private Cloud | SMS Alert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/sms-alert/id1100172188/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 14 months |
| Monetization | — | Free |
| Size | 17 MB | 7 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Quanta](https://appshunter.io/developer/506596827) | [朝山 马](https://appshunter.io/developer/596304901) |

## What reviewers say

### NIMBUS Watch Private Cloud

[App page](https://appshunter.io/ios/app/nimbus-watch-private-cloud/id1069298013)

**Features:** macOS Compatibility

**In-app purchases:** none


### SMS Alert

[App page](https://appshunter.io/ios/app/sms-alert/id1100172188)

This app monitors temperature, humidity, analog signals, and power status for various devices. It sends alerts via SMS and phone calls when predefined limits are reached. Users can also query device status via text and schedule periodic reports.

**Highlights:** Temperature and humidity monitoring, Analog signal monitoring (4-20mA, 0-5V), Power monitoring (single/three-phase), SMS and phone call alerts, Remote status query via text, Scheduled status reporting, Modbus RTU/TCP cloud platform support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NIMBUS Watch Private Cloud free?

NIMBUS Watch Private Cloud is free to download, with no in-app purchases.

### Is SMS Alert free?

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

### Do NIMBUS Watch Private Cloud or SMS Alert have ads?

Neither NIMBUS Watch Private Cloud nor SMS Alert shows ads.

### Which is updated more often, NIMBUS Watch Private Cloud or SMS Alert?

NIMBUS Watch Private Cloud ships an update every 3 months, and SMS Alert every 14 months. Most recently, NIMBUS Watch Private Cloud was updated on September 7, 2026 and SMS Alert on July 7, 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.*