# PUC vs PSIS4

The clearest difference is update cadence: PUC at every 5 weeks against PSIS4's every 20 months. PUC also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

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

PUC ships an update every 5 weeks, PSIS4 every 20 months. The most recent releases landed on October 2, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | PUC | PSIS4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/puc-mobile/id1476176259/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 5 weeks** | Every 20 months |
| Monetization | Free | — |
| Size | 46 MB | 30 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Paññāsāstra University of Cambodia](https://appshunter.io/developer/1474826859) | [YONG SOKHENG](https://appshunter.io/developer/1702023342) |

## What reviewers say

### PUC

[App page](https://appshunter.io/ios/app/puc-mobile/id1476176259)

This educational app promotes peace and responsible leadership through quality education. It focuses on developing professional skills, character, and wisdom for societal contribution and sustainable progress.

**Highlights:** Quality education delivery, Research-based learning, Studies of peace and conflict resolution, Moral and ethical conduct development, Social responsibility focus, Character building

**Features:** Vision Pro support

**In-app purchases:** none


### PSIS4

[App page](https://appshunter.io/ios/app/psis4/id6460007747)

**In-app purchases:** none


## Frequently asked questions

### Is PUC free?

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

### Is PSIS4 free?

PSIS4 is free to download, with no in-app purchases.

### Which is updated more often, PUC or PSIS4?

PUC ships an update every 5 weeks, and PSIS4 every 20 months. Most recently, PUC was updated on October 2, 2026 and PSIS4 on September 22, 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.*