# 光储能量云 vs ECO EMS

The clearest difference is update cadence: ECO EMS at weekly against 光储能量云's every 3 weeks. 光储能量云's advantage is iOS requirement (12.0 vs 15.0). 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.

光储能量云 ships an update every 3 weeks, ECO EMS weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 光储能量云 | ECO EMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 80 MB | 99 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [信科数联(西安)科技有限公司](https://appshunter.io/developer/1706960405) | [江苏斯菲尔电气股份有限公司](https://appshunter.io/developer/1139669836) |

## What reviewers say

### 光储能量云

[App page](https://appshunter.io/ios/app/id6466250996)

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

**In-app purchases:** none


### ECO EMS

[App page](https://appshunter.io/ios/app/eco-ems/id6471572742)

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

**In-app purchases:** none


## Frequently asked questions

### Is 光储能量云 free?

光储能量云 is free to download, with no in-app purchases.

### Is ECO EMS free?

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

### Do 光储能量云 or ECO EMS have ads?

Neither 光储能量云 nor ECO EMS shows ads.

### Which is updated more often, 光储能量云 or ECO EMS?

光储能量云 ships an update every 3 weeks, and ECO EMS weekly. Most recently, 光储能量云 was updated on November 3, 2026 and ECO EMS 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.*