# éCO2mix vs AirBuilding

The clearest difference is in-app purchases: éCO2mix at none against AirBuilding's 1. AirBuilding's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AirBuilding sells 1 in-app purchase, starting at $24.99 per month. éCO2mix asks for nothing beyond the download.

éCO2mix ships an update every 2 months, AirBuilding fortnightly. The most recent releases landed on October 23, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | éCO2mix | AirBuilding |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/eco2mix-rte/id424593993/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 49 MB | 17 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RTE Reseau de transport d'electricite](https://appshunter.io/developer/424593996) | [Aurelien Ribon](https://appshunter.io/developer/1737509079) |

## What reviewers say

### éCO2mix

[App page](https://appshunter.io/ios/app/eco2mix-rte/id424593993)

This app provides real-time insights into the French electrical system, visualizing consumption trends, production sources, and greenhouse gas emissions. It aims to make complex energy data accessible to everyone, fostering better understanding and consumption habits.

**Highlights:** Visualize French electrical system data, Track consumption trends, Analyze production sources, Monitor greenhouse gas emissions, View regional data, Consult European market spot prices

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

**In-app purchases:** none


### AirBuilding

[App page](https://appshunter.io/ios/app/airbuilding-analytics/id6755592591)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 site | $24.99 | per month |


## Frequently asked questions

### Is éCO2mix free?

éCO2mix is free to download, with no in-app purchases.

### Is AirBuilding free?

AirBuilding is free to download, with in-app purchases available.

### Do éCO2mix or AirBuilding have ads?

Neither éCO2mix nor AirBuilding shows ads.

### Which is updated more often, éCO2mix or AirBuilding?

éCO2mix ships an update every 2 months, and AirBuilding fortnightly. Most recently, éCO2mix was updated on October 23, 2026 and AirBuilding on October 17, 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.*