# GreenTech Network vs OwlEye Green Energy RL2

The clearest difference is update cadence: GreenTech Network at every 5 weeks against OwlEye Green Energy RL2's every 4 months. OwlEye Green Energy RL2's advantage is iOS requirement (15.1 vs 17.4). 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.

GreenTech Network ships an update every 5 weeks, OwlEye Green Energy RL2 every 4 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | GreenTech Network | OwlEye Green Energy RL2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Size | 146 MB | 39 MB |
| Requires iOS | 17.4 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [SWAPCARD CORPORATION](https://appshunter.io/developer/879488722) | [3Tech Corporate Limited](https://appshunter.io/developer/1558392685) |

## What reviewers say

### GreenTech Network

[App page](https://appshunter.io/ios/app/greentech-network/id6677014186)

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

**In-app purchases:** none


### OwlEye Green Energy RL2

[App page](https://appshunter.io/ios/app/owleye-green-energy-rl2/id6748440921)

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

**In-app purchases:** none


## Frequently asked questions

### Is GreenTech Network free?

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

### Is OwlEye Green Energy RL2 free?

OwlEye Green Energy RL2 is free to download, with no in-app purchases.

### Do GreenTech Network or OwlEye Green Energy RL2 have ads?

Neither GreenTech Network nor OwlEye Green Energy RL2 shows ads.

### Which is updated more often, GreenTech Network or OwlEye Green Energy RL2?

GreenTech Network ships an update every 5 weeks, and OwlEye Green Energy RL2 every 4 months. Most recently, GreenTech Network was updated on October 3, 2026 and OwlEye Green Energy RL2 on October 12, 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.*