# 스마트 위택스 vs SIREN24 아이핀(마이핀)

스마트 위택스 and SIREN24 아이핀(마이핀) both sit at 1.2 stars, but that hides the real split: 25% of 스마트 위택스's written reviews are positive against 5% of SIREN24 아이핀(마이핀)'s. SIREN24 아이핀(마이핀)'s advantage is ratings volume (507 vs 25) and iOS requirement (13.0 vs 15.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 1.2 for 스마트 위택스 against 1.2 for SIREN24 아이핀(마이핀). That said, the two scores are not equally well evidenced: SIREN24 아이핀(마이핀) has 507 ratings behind it against 25, so its average is the more settled of the two. Written reviews are what separate them: 25% of 스마트 위택스's written reviews are positive against 5% of SIREN24 아이핀(마이핀)'s.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | 스마트 위택스 | SIREN24 아이핀(마이핀) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.2 (25 ratings)](https://appshunter.io/ios/app/id888585740/reviews)** | [1.2 (507 ratings)](https://appshunter.io/ios/app/siren24/id960609828/reviews) |
| Number of ratings | 25 | **507** |
| Positive reviews | **25.0% of reviews** | 5.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 66 MB | 89 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [행정안전부](https://appshunter.io/developer/431558537) | [Seoul Credit Rating & Information Inc.](https://appshunter.io/developer/479851069) |

## What reviewers say

### 스마트 위택스

[App page](https://appshunter.io/ios/app/id888585740)

Manage local tax services on your mobile device. Submit tax declarations, apply for payment plans, make payments, and request tax certificates. Requires personal authentication, with options for certificate import from PC or guest access.

**Highlights:** Tax declarations (acquisition, registration, income), Payment applications (auto-pay, installment plans), Tax payment and history lookup, Refund applications, Tax certificate issuance, Delegation management, Camera access for document verification

**In-app purchases:** none


### SIREN24 아이핀(마이핀)

[App page](https://appshunter.io/ios/app/siren24/id960609828)

This app provides secure and convenient access to i-PIN and My-PIN services. It offers real-time authentication alerts, allows for i-PIN/My-PIN lookup and changes, and supports secondary authentication methods like OTP and QR codes for easy management.

**Highlights:** i-PIN management (issue, revoke, history), My-PIN management (issue, revoke, history), Real-time authentication alerts, Secondary authentication setup (OTP, QR), QR code simple authentication

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 스마트 위택스 free?

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

### Is SIREN24 아이핀(마이핀) free?

SIREN24 아이핀(마이핀) is free to download, with no in-app purchases.

### Which has better reviews, 스마트 위택스 or SIREN24 아이핀(마이핀)?

스마트 위택스 is rated higher. 스마트 위택스 averages 1.2 out of 5 from 25 ratings, while SIREN24 아이핀(마이핀) averages 1.2 from 507 ratings.

### Do 스마트 위택스 or SIREN24 아이핀(마이핀) have ads?

Neither 스마트 위택스 nor SIREN24 아이핀(마이핀) shows ads.

### Which is updated more often, 스마트 위택스 or SIREN24 아이핀(마이핀)?

스마트 위택스 ships an update every 2 months, and SIREN24 아이핀(마이핀) every 2 months. Most recently, 스마트 위택스 was updated on November 6, 2026 and SIREN24 아이핀(마이핀) on November 6, 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.*