# redOS. vs i

The clearest difference is rating: i at 3.0 against redOS.'s 1.0. i also leads on review sentiment (23% vs 0%). redOS.'s advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (12.0 vs 16.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

i holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 0% of redOS.'s written reviews are positive against 23% of i's.

redOS. ships an update weekly, i every 3 weeks. The most recent releases landed on September 24, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | redOS. | i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/redos/id781388455/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/i-de/id1095609253/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 0.0% of reviews | **23.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 56 MB | 181 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Red Eléctrica de España](https://appshunter.io/developer/505983862) | [I-DE Redes Electricas Inteligentes Sociedad Anonima](https://appshunter.io/developer/1095609252) |

## 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


### i

[App page](https://appshunter.io/ios/app/i-de/id1095609253)

Monitor your electricity usage, power consumption, and network status. View detailed consumption data, manage contracts, and receive notifications about faults or scheduled outages. Future updates will include more advanced features for managing your energy supply.

**Highlights:** View daily, weekly, monthly consumption, Download consumption data (Excel, CSV, PDF), Check contracted power adequacy, Manage contracts for other clients, Receive fault and outage notifications, Subscribe to electronic invoices

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

**In-app purchases:** none


## Frequently asked questions

### Is redOS. free?

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

### Is i free?

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

### Which has better reviews, redOS. or i?

i is rated higher. redOS. averages 1.0 out of 5 from 1 ratings, while i averages 3.0 from 2 ratings.

### Do redOS. or i have ads?

Neither redOS. nor i shows ads.

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

redOS. ships an update weekly, and i every 3 weeks. Most recently, redOS. was updated on September 24, 2026 and i on September 4, 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.*