# ICSIS vs ZYIS App

The clearest difference is rating: ZYIS App at 4.0 against ICSIS's 3.0. ICSIS's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

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

ZYIS App holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

ICSIS ships an update monthly, ZYIS App every 5 weeks. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | ICSIS | ZYIS App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/icsis/id1469492150/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/zyis-app/id1609180952/reviews)** |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 55 MB | 92 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Norm Chan](https://appshunter.io/developer/1469492149) | [Panha Sa](https://appshunter.io/developer/1534830463) |

## What reviewers say

### ICSIS

[App page](https://appshunter.io/ios/app/icsis/id1469492150)

This app provides school information, notifications, and announcements for parents and students. It facilitates interaction with the school community and aims to foster a supportive learning environment. Future updates will introduce more features.

**Highlights:** School information access, Notifications and announcements, Feedback submission, Parent-student interaction, Community engagement

**Features:** macOS Compatibility

**In-app purchases:** none


### ZYIS App

[App page](https://appshunter.io/ios/app/zyis-app/id1609180952)

This app provides information about a trilingual school offering Khmer, Chinese, and English programs from pre-school to high school. It details the school's accreditation, founders, and multiple campus locations, highlighting its expansion due to demand.

**Highlights:** Trilingual education programs (Khmer, Chinese, English), Preschool to high school levels, School accreditation details, Founder information, Multiple campus locations, Expansion updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ICSIS free?

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

### Is ZYIS App free?

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

### Which has better reviews, ICSIS or ZYIS App?

ZYIS App is rated higher. ICSIS averages 3.0 out of 5 from 2 ratings, while ZYIS App averages 4.0 from 1 ratings.

### Do ICSIS or ZYIS App have ads?

ZYIS App shows ads; ICSIS does not.

### Which is updated more often, ICSIS or ZYIS App?

ICSIS ships an update monthly, and ZYIS App every 5 weeks. Most recently, ICSIS was updated on October 1, 2026 and ZYIS App on October 6, 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.*