# Plus4U Key vs ERA Control

The clearest difference is update cadence: ERA Control at every 2 days against Plus4U Key's every 6 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.

Plus4U Key ships an update every 6 months, ERA Control every 2 days. The most recent releases landed on September 27, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Plus4U Key | ERA Control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 days** |
| Size | 87 MB | 48 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Plus4U Net a.s.](https://appshunter.io/developer/899103157) | [Guangdong Mitela Electrical Appliances Technology Co., Ltd.](https://appshunter.io/developer/1536735895) |

## What reviewers say

### Plus4U Key

[App page](https://appshunter.io/ios/app/plus4u-key/id6443866595)

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

**In-app purchases:** none


### ERA Control

[App page](https://appshunter.io/ios/app/era-control/id6756764661)

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

**In-app purchases:** none


## Frequently asked questions

### Is Plus4U Key free?

Plus4U Key is free to download, with no in-app purchases.

### Is ERA Control free?

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

### Do Plus4U Key or ERA Control have ads?

Neither Plus4U Key nor ERA Control shows ads.

### Which is updated more often, Plus4U Key or ERA Control?

Plus4U Key ships an update every 6 months, and ERA Control every 2 days. Most recently, Plus4U Key was updated on September 27, 2026 and ERA Control on October 8, 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.*