# S.I.S vs EIS school

The clearest difference is update cadence: EIS school at monthly against S.I.S's every 2 months. EIS school also leads on iOS requirement (13.0 vs 15.0). 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.

S.I.S ships an update every 2 months, EIS school monthly. The most recent releases landed on September 14, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | S.I.S | EIS school |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 58 MB | 77 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [WINTECH SOFTWARE DEVELOPMENT (CAMBODIA) CO., LTD](https://appshunter.io/developer/1597112884) | [Reaksmey Kevin](https://appshunter.io/developer/1447647621) |

## What reviewers say

### S.I.S

[App page](https://appshunter.io/ios/app/sis/id1399994628)

**Features:** macOS Compatibility

**In-app purchases:** none


### EIS school

[App page](https://appshunter.io/ios/app/eis-school/id1512092984)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is S.I.S free?

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

### Is EIS school free?

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

### Do S.I.S or EIS school have ads?

Neither S.I.S nor EIS school shows ads.

### Which is updated more often, S.I.S or EIS school?

S.I.S ships an update every 2 months, and EIS school monthly. Most recently, S.I.S was updated on September 14, 2026 and EIS school on June 4, 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.*