# 3Egreen Meter vs ArkEnergy

The clearest difference is update cadence: ArkEnergy at every 3 weeks against 3Egreen Meter's every 6 weeks. 3Egreen Meter's advantage is device support. On price, in-app purchases and iOS requirement there is nothing between them.

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

3Egreen Meter ships an update every 6 weeks, ArkEnergy every 3 weeks. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 3Egreen Meter | ArkEnergy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 9 MB | 67 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Skywind Inc.](https://appshunter.io/developer/900391858) | [Thingnario co. LTD](https://appshunter.io/developer/1296191019) |

## What reviewers say

### 3Egreen Meter

[App page](https://appshunter.io/ios/app/3egreen-meter/id1659607105)

**Features:** macOS Compatibility

**In-app purchases:** none


### ArkEnergy

[App page](https://appshunter.io/ios/app/arkenergy/id6760633728)

**In-app purchases:** none


## Frequently asked questions

### Is 3Egreen Meter free?

3Egreen Meter is free to download, with no in-app purchases.

### Is ArkEnergy free?

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

### Which is updated more often, 3Egreen Meter or ArkEnergy?

3Egreen Meter ships an update every 6 weeks, and ArkEnergy every 3 weeks. Most recently, 3Egreen Meter was updated on October 5, 2026 and ArkEnergy on October 9, 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.*