# Green Science vs Çelikler Enerji

Green Science and Çelikler Enerji are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Green Science | Çelikler Enerji |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 57 MB | 56 MB |
| Requires iOS | 15.5 | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ZEY ENERJI SANAYI VE TICARET ANONIM SIRKETI](https://appshunter.io/developer/1772906289) | [CELIKLER GLOBAL ENERJI SARJ SISTEMLERI ANONIM SIRKETI](https://appshunter.io/developer/1815447818) |

## What reviewers say

### Green Science

[App page](https://appshunter.io/ios/app/green-science/id6736655887)

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

**In-app purchases:** none


### Çelikler Enerji

[App page](https://appshunter.io/ios/app/celikler-enerji/id6746149357)

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

**In-app purchases:** none


## Frequently asked questions

### Is Green Science free?

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

### Is Çelikler Enerji free?

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

### Do Green Science or Çelikler Enerji have ads?

Neither Green Science nor Çelikler Enerji shows ads.

### Which is updated more often, Green Science or Çelikler Enerji?

Green Science ships an update every 2 months, and Çelikler Enerji every 2 months. Most recently, Green Science was updated on October 30, 2026 and Çelikler Enerji on October 24, 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.*