# Zero Carbon vs Emerald Sun Energy

The clearest difference is update cadence: Emerald Sun Energy at fortnightly against Zero Carbon's monthly. 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.

Zero Carbon ships an update monthly, Emerald Sun Energy fortnightly. The most recent releases landed on October 25, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Zero Carbon | Emerald Sun Energy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/emerald-sun-energy/id6447573280/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | — | Free |
| Size | 22 MB | 49 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TheTowerTech](https://appshunter.io/developer/1259751444) | [Emerald Sun Energy LLC](https://appshunter.io/developer/1599438587) |

## What reviewers say

### Zero Carbon

[App page](https://appshunter.io/ios/app/zero-carbon-connect/id6447286723)

**Features:** macOS Compatibility

**In-app purchases:** none


### Emerald Sun Energy

[App page](https://appshunter.io/ios/app/emerald-sun-energy/id6447573280)

This app provides expert advice and strategies for saving energy and making informed decisions about solar power. It offers a commitment pledge to clients, ensuring high-quality products, competitive financing, and assistance with tax credits and incentives.

**Highlights:** Energy saving strategies, Solar product recommendations, Financing options, Tax credit assistance, Free energy consultation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zero Carbon free?

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

### Is Emerald Sun Energy free?

Emerald Sun Energy is free to download, with no in-app purchases.

### Do Zero Carbon or Emerald Sun Energy have ads?

Neither Zero Carbon nor Emerald Sun Energy shows ads.

### Which is updated more often, Zero Carbon or Emerald Sun Energy?

Zero Carbon ships an update monthly, and Emerald Sun Energy fortnightly. Most recently, Zero Carbon was updated on October 25, 2026 and Emerald Sun Energy 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.*