# Forstify vs GreenSun

The clearest difference is update cadence: Forstify at every 4 weeks against GreenSun's every 2 months. GreenSun's advantage is iOS requirement (12.4 vs 16.0). 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.

Forstify ships an update every 4 weeks, GreenSun every 2 months. The most recent releases landed on September 28, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Forstify | GreenSun |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Size | 265 MB | 21 MB |
| Requires iOS | 16.0 | **12.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Forstify GmbH](https://appshunter.io/developer/1480944753) | [xPlants.it S.r.l.](https://appshunter.io/developer/513847261) |

## What reviewers say

### Forstify

[App page](https://appshunter.io/ios/app/forstify-forest-tools/id1480944754)

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

**In-app purchases:** none


### GreenSun

[App page](https://appshunter.io/ios/app/greensun/id1497319547)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Forstify free?

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

### Is GreenSun free?

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

### Do Forstify or GreenSun have ads?

Neither Forstify nor GreenSun shows ads.

### Which is updated more often, Forstify or GreenSun?

Forstify ships an update every 4 weeks, and GreenSun every 2 months. Most recently, Forstify was updated on September 28, 2026 and GreenSun on October 11, 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.*