# 스마트 공지시스템 e알리미 vs Chappy

The clearest difference is ads: 스마트 공지시스템 e알리미 at none against Chappy's shown. 스마트 공지시스템 e알리미 also leads on monetization model (free vs ad-supported) and iOS requirement (12.0 vs 18.0). Chappy's advantage is review sentiment (44% vs 12%) and update cadence (every 4 weeks vs every 4 months). On price, 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.

스마트 공지시스템 e알리미 ships an update every 4 months, Chappy every 4 weeks. The most recent releases landed on September 27, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | 스마트 공지시스템 e알리미 | Chappy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.7 (16 ratings)](https://appshunter.io/ios/app/e/id899929551/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 12.1% of reviews | **44.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 18 MB | 38 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [(c) E-WUT](https://appshunter.io/developer/487448818) | [Saerom Shin](https://appshunter.io/developer/1716768656) |

## What reviewers say

### 스마트 공지시스템 e알리미

[App page](https://appshunter.io/ios/app/e/id899929551)

This app provides a smart notification system for schools, apartments, government offices, and businesses. It allows users to experience new and more convenient announcements. Users can apply for service through the provided website.

**Highlights:** Smart notification system, Photo upload capability, Push notifications for announcements, Service application via website, Supports various organizations

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

**In-app purchases:** none


### Chappy

[App page](https://appshunter.io/ios/app/chappy-ai-quiz-solver/id6472210312)

Snap a photo of your homework problem and get instant answers with an AI tutor. This app provides immediate explanations for questions, helping you understand concepts without waiting for a teacher. Simply take a picture, crop it, and receive your solution.

**Highlights:** AI-powered problem solver, Instant answers, Photo recognition for questions, Immediate explanations, Homework assistance

**In-app purchases:** none


## Frequently asked questions

### Is 스마트 공지시스템 e알리미 free?

스마트 공지시스템 e알리미 is free to download, with no in-app purchases.

### Is Chappy free?

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

### Do 스마트 공지시스템 e알리미 or Chappy have ads?

Chappy shows ads; 스마트 공지시스템 e알리미 does not.

### Which is updated more often, 스마트 공지시스템 e알리미 or Chappy?

스마트 공지시스템 e알리미 ships an update every 4 months, and Chappy every 4 weeks. Most recently, 스마트 공지시스템 e알리미 was updated on September 27, 2026 and Chappy on September 19, 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.*