# Smart Energy Control vs iEMS

The clearest difference is update cadence: Smart Energy Control at every 3 weeks against iEMS's every 4 months. 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.

Smart Energy Control ships an update every 3 weeks, iEMS every 4 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Smart Energy Control | iEMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 121 MB | 41 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [广东南方智运汽车科技有限公司](https://appshunter.io/developer/1234520910) | [Shenzhen ZTE Software Co., Ltd.](https://appshunter.io/developer/1863573894) |

## What reviewers say

### Smart Energy Control

[App page](https://appshunter.io/ios/app/smart-energy-control/id6449818404)

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

**In-app purchases:** none


### iEMS

[App page](https://appshunter.io/ios/app/iems/id6450133373)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Energy Control free?

Smart Energy Control is free to download, with no in-app purchases.

### Is iEMS free?

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

### Do Smart Energy Control or iEMS have ads?

Neither Smart Energy Control nor iEMS shows ads.

### Which is updated more often, Smart Energy Control or iEMS?

Smart Energy Control ships an update every 3 weeks, and iEMS every 4 months. Most recently, Smart Energy Control was updated on October 24, 2026 and iEMS 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.*