# CloudWarm vs SONO USG

The clearest difference is iOS requirement: CloudWarm at 8.0 against SONO USG's 15.0. 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.

CloudWarm ships an update monthly, SONO USG every 4 weeks. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CloudWarm | SONO USG |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 27 MB | 276 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Shenzhen Allied Control System Co., Ltd.](https://appshunter.io/developer/1094154581) | [Leltek](https://appshunter.io/developer/1329395835) |

## What reviewers say

### CloudWarm

[App page](https://appshunter.io/ios/app/cloudwarm/id1142421984)

Control your home's heating system remotely with this app. It allows you to manage your boiler, create personalized heating schedules, and ensure a comfortable and energy-efficient environment from anywhere.

**Highlights:** Remote temperature control, Personalized heating programs, Boiler management, Energy saving features, Comfortable home environment

**Features:** macOS Compatibility

**In-app purchases:** none


### SONO USG

[App page](https://appshunter.io/ios/app/sono-usg/id1671961635)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CloudWarm free?

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

### Is SONO USG free?

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

### Do CloudWarm or SONO USG have ads?

Neither CloudWarm nor SONO USG shows ads.

### Which is updated more often, CloudWarm or SONO USG?

CloudWarm ships an update monthly, and SONO USG every 4 weeks. Most recently, CloudWarm was updated on October 11, 2026 and SONO USG on October 9, 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.*