# 모비싸인(MobiSign) vs 서울시 세금납부

The clearest difference is rating: 서울시 세금납부 at 4.4 against 모비싸인(MobiSign)'s 1.0. 서울시 세금납부 also leads on in-app purchases (none vs 1) and review sentiment (24% vs 14%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. 모비싸인(MobiSign) sells 1 in-app purchase, starting at $0.99 per month. 서울시 세금납부 asks for nothing beyond the download.

서울시 세금납부 holds the better App Store score, 4.4 against 1.0. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews point the same way: 14% of 모비싸인(MobiSign)'s written reviews are positive against 24% of 서울시 세금납부's.

모비싸인(MobiSign) ships an update every 5 months, 서울시 세금납부 every 3 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 모비싸인(MobiSign) | 서울시 세금납부 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/mobisign/id510264761/reviews) | **[4.4 (5 ratings)](https://appshunter.io/ios/app/stax/id1445541058/reviews)** |
| Number of ratings | 2 | **5** |
| Positive reviews | 14.3% of reviews | **24.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 46 MB | 43 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [금융결제원 (KFTC)](https://appshunter.io/developer/666154467) | [SHINHAN BANK CO. LTD](https://appshunter.io/developer/357484935) |

## What reviewers say

### 모비싸인(MobiSign)

[App page](https://appshunter.io/ios/app/mobisign/id510264761)

This service allows you to electronically sign documents using your smartphone's digital certificate. It securely stores your certificate and enables signing on PCs through various financial and public services. Enjoy enhanced security and portability for your digital transactions.

**Highlights:** Use smartphone digital certificate on PC, Securely store digital certificates, Electronic signing via smartphone, Convenient certificate copying (QR, code), Compatible with banking, shopping, public services

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MobiSign Monthly Subscription | $0.99 | per month |


### 서울시 세금납부

[App page](https://appshunter.io/ios/app/stax/id1445541058)

Pay Seoul city taxes and fees easily. Supports various payment methods including bank transfers and credit cards. Offers a mileage service for rewards and multiple login options for convenience.

**Highlights:** Pay local taxes and fees, Pay for others without login, Multiple payment methods, Mileage rewards program, Biometric and certificate login, Push notifications for payments

**In-app purchases:** none


## Frequently asked questions

### Is 모비싸인(MobiSign) free?

모비싸인(MobiSign) is free to download, with in-app purchases available.

### Is 서울시 세금납부 free?

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

### Which has better reviews, 모비싸인(MobiSign) or 서울시 세금납부?

서울시 세금납부 is rated higher. 모비싸인(MobiSign) averages 1.0 out of 5 from 2 ratings, while 서울시 세금납부 averages 4.4 from 5 ratings.

### Do 모비싸인(MobiSign) or 서울시 세금납부 have ads?

Neither 모비싸인(MobiSign) nor 서울시 세금납부 shows ads.

### Which is updated more often, 모비싸인(MobiSign) or 서울시 세금납부?

모비싸인(MobiSign) ships an update every 5 months, and 서울시 세금납부 every 3 months. Most recently, 모비싸인(MobiSign) was updated on November 1, 2026 and 서울시 세금납부 on November 4, 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.*