# PSO vs Greenify

The clearest difference is update cadence: PSO at every 2 weeks against Greenify's every 3 months. PSO also leads on iOS requirement (12 vs 16.6). 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.

PSO ships an update every 2 weeks, Greenify every 3 months. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | PSO | Greenify |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Size | 81 MB | 18 MB |
| Requires iOS | **12** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Beowulf Network Inc](https://appshunter.io/developer/1590801990) | [Khoa Tran](https://appshunter.io/developer/1813634232) |

## What reviewers say

### PSO

[App page](https://appshunter.io/ios/app/pso/id6469098136)

**Features:** macOS Compatibility

**In-app purchases:** none


### Greenify

[App page](https://appshunter.io/ios/app/greenify/id6745743442)

**In-app purchases:** none


## Frequently asked questions

### Is PSO free?

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

### Is Greenify free?

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

### Do PSO or Greenify have ads?

Neither PSO nor Greenify shows ads.

### Which is updated more often, PSO or Greenify?

PSO ships an update every 2 weeks, and Greenify every 3 months. Most recently, PSO was updated on October 6, 2026 and Greenify on September 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*