# OTIS 전자 계약 vs 아이스쿨(AI SCHOOL)

The clearest difference is update cadence: OTIS 전자 계약 at every 2 weeks against 아이스쿨(AI SCHOOL)'s every 6 weeks. 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.

OTIS 전자 계약 ships an update every 2 weeks, 아이스쿨(AI SCHOOL) every 6 weeks. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | OTIS 전자 계약 | 아이스쿨(AI SCHOOL) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Size | 8 MB | 52 MB |
| Requires iOS | **13.5** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OTIS Elevator Korea](https://appshunter.io/developer/1556769837) | [KUK HYEONG KIM](https://appshunter.io/developer/1037784257) |

## What reviewers say

### OTIS 전자 계약

[App page](https://appshunter.io/ios/app/otis/id1556769835)

**Features:** macOS Compatibility

**In-app purchases:** none


### 아이스쿨(AI SCHOOL)

[App page](https://appshunter.io/ios/app/ai-school/id6738344725)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OTIS 전자 계약 free?

OTIS 전자 계약 is free to download, with no in-app purchases.

### Is 아이스쿨(AI SCHOOL) free?

아이스쿨(AI SCHOOL) is free to download, with no in-app purchases.

### Do OTIS 전자 계약 or 아이스쿨(AI SCHOOL) have ads?

Neither OTIS 전자 계약 nor 아이스쿨(AI SCHOOL) shows ads.

### Which is updated more often, OTIS 전자 계약 or 아이스쿨(AI SCHOOL)?

OTIS 전자 계약 ships an update every 2 weeks, and 아이스쿨(AI SCHOOL) every 6 weeks. Most recently, OTIS 전자 계약 was updated on October 15, 2026 and 아이스쿨(AI SCHOOL) on October 7, 2026.

---

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