# eSLS 인증 알리미 vs BDU 스마트인증

The clearest difference is update cadence: eSLS 인증 알리미 at every 4 months against BDU 스마트인증's every 32 months. BDU 스마트인증's advantage is iOS requirement (13.0 vs 15.0). On price, review sentiment, ads 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.

eSLS 인증 알리미 ships an update every 4 months, BDU 스마트인증 every 32 months. The most recent releases landed on August 18, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | eSLS 인증 알리미 | BDU 스마트인증 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 32 months |
| Monetization | Free | Free |
| Size | 6 MB | 9 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YBM NET, Inc.](https://appshunter.io/developer/332188969) | [BDU](https://appshunter.io/developer/961518255) |

## What reviewers say

### 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


### BDU 스마트인증

[App page](https://appshunter.io/ios/app/bdu/id1539603834)

This mobile biometric authentication solution replaces traditional passwords and certificates with advanced identity verification. It offers a secure and convenient way to log into various work systems using fingerprint, PIN, or OTP, ensuring strong user authentication.

**Highlights:** Mobile biometric authentication, Replaces passwords and certificates, Fingerprint, PIN, and OTP options, Secure login for work systems, Patented technology for screen lock authentication, Complies with national information security guidelines

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is eSLS 인증 알리미 free?

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

### Is BDU 스마트인증 free?

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

### Do eSLS 인증 알리미 or BDU 스마트인증 have ads?

Neither eSLS 인증 알리미 nor BDU 스마트인증 shows ads.

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

eSLS 인증 알리미 ships an update every 4 months, and BDU 스마트인증 every 32 months. Most recently, eSLS 인증 알리미 was updated on August 18, 2026 and BDU 스마트인증 on September 12, 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.*