# Greenchoice vs CleanAirOptima

The clearest difference is update cadence: Greenchoice at every 3 months against CleanAirOptima's every 17 months. CleanAirOptima's advantage is iOS requirement (12.0 vs 14.0). 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.

Greenchoice ships an update every 3 months, CleanAirOptima every 17 months. The most recent releases landed on August 3, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Greenchoice | CleanAirOptima |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (39 ratings)](https://appshunter.io/ios/app/greenchoice/id973096186/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 17 months |
| Monetization | Ad-supported | — |
| Size | 10 MB | 194 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Greenchoice](https://appshunter.io/developer/554145430) | [Clean Air Optima International B.V.](https://appshunter.io/developer/1597731229) |

## What reviewers say

### Greenchoice

[App page](https://appshunter.io/ios/app/greenchoice/id973096186)

Manage your energy account on the go with this free utility app. Gain insight into your energy consumption and payments, adjust your monthly payments, and update your personal details. It simplifies handling your energy affairs from anywhere.

**Highlights:** View energy consumption and feed-in, Adjust monthly payment amount, Update contact and payment details, Report a move, Access payment history and annual statements

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

**In-app purchases:** none


### CleanAirOptima

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Greenchoice free?

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

### Is CleanAirOptima free?

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

### Do Greenchoice or CleanAirOptima have ads?

Neither Greenchoice nor CleanAirOptima shows ads.

### Which is updated more often, Greenchoice or CleanAirOptima?

Greenchoice ships an update every 3 months, and CleanAirOptima every 17 months. Most recently, Greenchoice was updated on August 3, 2026 and CleanAirOptima on September 19, 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.*