PSO vs Greenify
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PSO
Read full descriptionHide full description
PSO is the higher education provider offering diversified choices of global educational programs equipping students with cutting-edge business knowledge and skills through hands- on projects guiding by international professionals and industry experts.
Greenify
Read full descriptionHide full description
Greenify is a collection of simple environmental games that make learning about ecology fun and accessible. Our featured game, Garbage Sorter, teaches players how to correctly sort common items into recycling, compost, landfill, or hazardous waste bins. Additional eco-games in our collection help players learn about various environmental topics through engaging, easy-to-play formats.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | PSO | Greenify |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12 — better | 16.6 |
| Further details — not scored | ||
| Size | 81 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Beowulf Network Inc | Khoa Tran |
In-app purchases
PSO
No in-app purchases
Greenify
No in-app purchases
