# Green Science vs Hera Charge

The clearest difference is update cadence: Hera Charge at weekly against Green Science's every 2 months. 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.

Green Science ships an update every 2 months, Hera Charge weekly. The most recent releases landed on September 11, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Green Science | Hera Charge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 56 MB | 41 MB |
| Requires iOS | 15.5 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ZEY ENERJI SANAYI VE TICARET ANONIM SIRKETI](https://appshunter.io/developer/1772906289) | [Hera Charge](https://appshunter.io/developer/1730106632) |

## 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


### Hera Charge

[App page](https://appshunter.io/ios/app/hera-charge/id6744275865)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Green Science free?

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

### Is Hera Charge free?

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

### Do Green Science or Hera Charge have ads?

Neither Green Science nor Hera Charge shows ads.

### Which is updated more often, Green Science or Hera Charge?

Green Science ships an update every 2 months, and Hera Charge weekly. Most recently, Green Science was updated on September 11, 2026 and Hera Charge on September 17, 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.*