# GreenOE vs COTW Clicker

The clearest difference is in-app purchases: GreenOE at none against COTW Clicker's 1. GreenOE also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). COTW Clicker's advantage is update cadence (every 4 days vs every 7 months). On price and device support there is nothing between them.

Both are free to download. COTW Clicker sells 1 one-off in-app purchase. GreenOE asks for nothing beyond the download.

GreenOE ships an update every 7 months, COTW Clicker every 4 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | GreenOE | COTW Clicker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.4 (13 ratings)](https://appshunter.io/ios/app/greenoe/id6745133836/reviews)** | — |
| Number of ratings | **13** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 26 MB | 27 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Boiling Water Technology Co., Ltd.](https://appshunter.io/developer/1688664790) | [Marco Arnold](https://appshunter.io/developer/6785759277) |

## What reviewers say

### GreenOE

[App page](https://appshunter.io/ios/app/greenoe/id6745133836)

This utility app offers smart battery solutions to optimize device power usage. It aims to enhance the longevity and efficiency of your device's battery. The application is designed for users seeking better power management.

**Highlights:** Smart battery optimization, Enhanced power efficiency, Device battery longevity, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


### COTW Clicker

[App page](https://appshunter.io/ios/app/cotw-clicker/id6785759275)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| COTW Clicker Pro | $3.99 | one-time |


## Frequently asked questions

### Is GreenOE free?

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

### Is COTW Clicker free?

COTW Clicker is free to download, with in-app purchases available.

### Do GreenOE or COTW Clicker have ads?

COTW Clicker shows ads; GreenOE does not.

### Which is updated more often, GreenOE or COTW Clicker?

GreenOE ships an update every 7 months, and COTW Clicker every 4 days. Most recently, GreenOE was updated on October 24, 2026 and COTW Clicker on October 10, 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.*