# 智慧采暖 vs Ewater

The clearest difference is update cadence: Ewater at every 2 months against 智慧采暖's every 7 months. 智慧采暖's advantage is iOS requirement (9.0 vs 13.0). 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.

智慧采暖 ships an update every 7 months, Ewater every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 智慧采暖 | Ewater |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Size | 25 MB | 66 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Woxi(Shandong) electric Co., Ltd](https://appshunter.io/developer/1559679257) | [红玲 车](https://appshunter.io/developer/1764656419) |

## What reviewers say

### 智慧采暖

[App page](https://appshunter.io/ios/app/id1559679255)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ewater

[App page](https://appshunter.io/ios/app/ewater/id1616460455)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 智慧采暖 free?

智慧采暖 is free to download, with no in-app purchases.

### Is Ewater free?

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

### Do 智慧采暖 or Ewater have ads?

Neither 智慧采暖 nor Ewater shows ads.

### Which is updated more often, 智慧采暖 or Ewater?

智慧采暖 ships an update every 7 months, and Ewater every 2 months. Most recently, 智慧采暖 was updated on November 3, 2026 and Ewater on October 30, 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.*