# 을지대수강신청 vs eSLS 인증 알리미

The clearest difference is update cadence: eSLS 인증 알리미 at every 4 months against 을지대수강신청's every 38 months. 을지대수강신청's advantage is iOS requirement (12.0 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.

을지대수강신청 ships an update every 38 months, eSLS 인증 알리미 every 4 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 을지대수강신청 | eSLS 인증 알리미 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 9 MB | 6 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dong Jin Lee](https://appshunter.io/developer/541832543) | [YBM NET, Inc.](https://appshunter.io/developer/332188969) |

## What reviewers say

### 을지대수강신청

[App page](https://appshunter.io/ios/app/id1382542008)

**In-app purchases:** none


### eSLS 인증 알리미

[App page](https://appshunter.io/ios/app/esls/id1466922189)

This app allows eSLS remote course students to conveniently verify their identity for attendance and authentication. It requires a smartphone and personal verification, preventing proxy authentication. Users can easily authenticate for daily logins after course registration.

**Highlights:** Personal smartphone authentication, Attendance and verification tool, Exclusive for eSLS remote course students, Daily authentication reset, SMS-based identity verification

**In-app purchases:** none


## Frequently asked questions

### Is 을지대수강신청 free?

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

### Is eSLS 인증 알리미 free?

eSLS 인증 알리미 is free to download, with no in-app purchases.

### Do 을지대수강신청 or eSLS 인증 알리미 have ads?

Neither 을지대수강신청 nor eSLS 인증 알리미 shows ads.

### Which is updated more often, 을지대수강신청 or eSLS 인증 알리미?

을지대수강신청 ships an update every 38 months, and eSLS 인증 알리미 every 4 months. Most recently, 을지대수강신청 was updated on October 15, 2026 and eSLS 인증 알리미 on October 7, 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.*