# IoT EMS vs AoFeiEnergy

IoT EMS and AoFeiEnergy are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IoT EMS ships an update every 2 months, AoFeiEnergy every 4 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | IoT EMS | AoFeiEnergy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 25 MB | 505 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ACREL CO.,LTD](https://appshunter.io/developer/1277572474) | [Guangdong Aofei New Energy CO., Ltd](https://appshunter.io/developer/1591358836) |

## What reviewers say

### IoT EMS

[App page](https://appshunter.io/ios/app/iot-ems/id1560302424)

**Features:** macOS Compatibility

**In-app purchases:** none


### AoFeiEnergy

[App page](https://appshunter.io/ios/app/aofeienergy/id6590614882)

**In-app purchases:** none


## Frequently asked questions

### Is IoT EMS free?

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

### Is AoFeiEnergy free?

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

### Do IoT EMS or AoFeiEnergy have ads?

Neither IoT EMS nor AoFeiEnergy shows ads.

### Which is updated more often, IoT EMS or AoFeiEnergy?

IoT EMS ships an update every 2 months, and AoFeiEnergy every 4 months. Most recently, IoT EMS was updated on October 27, 2026 and AoFeiEnergy on October 24, 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.*