# redOS. vs UFD

The clearest difference is update cadence: redOS. at weekly against UFD's every 3 weeks. 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.

redOS. ships an update weekly, UFD every 3 weeks. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | redOS. | UFD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/redos/id781388455/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 56 MB | 115 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Red Eléctrica de España](https://appshunter.io/developer/505983862) | [UFD DISTRIBUCION ELECTRICIDAD SA.](https://appshunter.io/developer/1680574092) |

## What reviewers say

### redOS.

[App page](https://appshunter.io/ios/app/redos/id781388455)

Monitor the real-time status of the electricity system with key operational indicators. Choose between a consumer profile for energy transition engagement or a professional profile for in-depth data on generation, demand, prices, and exchanges.

**Highlights:** Real-time system status, Consumer profile, Professional profile, Electricity demand data, Generation information, CO2 emissions tracking, Price and exchange data

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

**In-app purchases:** none


### UFD

[App page](https://appshunter.io/ios/app/ufd/id6447208107)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is redOS. free?

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

### Is UFD free?

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

### Do redOS. or UFD have ads?

Neither redOS. nor UFD shows ads.

### Which is updated more often, redOS. or UFD?

redOS. ships an update weekly, and UFD every 3 weeks. Most recently, redOS. was updated on September 24, 2026 and UFD on September 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.*