# CleanAirOptima vs ELRO Connects 2.0

The clearest difference is update cadence: ELRO Connects 2.0 at every 2 months against CleanAirOptima's every 17 months. ELRO Connects 2.0 also leads on iOS requirement (9.0 vs 12.0). 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.

CleanAirOptima ships an update every 17 months, ELRO Connects 2.0 every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | CleanAirOptima | ELRO Connects 2.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/cleanairoptima/id1597731227/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 194 MB | 46 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Clean Air Optima International B.V.](https://appshunter.io/developer/1597731229) | [ELRO Europe](https://appshunter.io/developer/1319014095) |

## What reviewers say

### CleanAirOptima

[App page](https://appshunter.io/ios/app/cleanairoptima/id1597731227)

Control and monitor your smart air quality devices remotely from anywhere in the world. Set desired temperature and humidity levels, and track air quality across different rooms in your home.

**Highlights:** Remote device control, Real-time monitoring, Temperature and humidity tracking, Room management, Global access with internet

**Features:** macOS Compatibility

**In-app purchases:** none


### ELRO Connects 2.0

[App page](https://appshunter.io/ios/app/elro-connects-20/id1620278210)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CleanAirOptima free?

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

### Is ELRO Connects 2.0 free?

ELRO Connects 2.0 is free to download, with no in-app purchases.

### Do CleanAirOptima or ELRO Connects 2.0 have ads?

Neither CleanAirOptima nor ELRO Connects 2.0 shows ads.

### Which is updated more often, CleanAirOptima or ELRO Connects 2.0?

CleanAirOptima ships an update every 17 months, and ELRO Connects 2.0 every 2 months. Most recently, CleanAirOptima was updated on November 3, 2026 and ELRO Connects 2.0 on November 3, 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.*