# USIMPAY vs 전북국적+

The clearest difference is update cadence: 전북국적+ at every 9 days against USIMPAY's monthly. USIMPAY's advantage is iOS requirement (11.0 vs 13.0). 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.

USIMPAY ships an update monthly, 전북국적+ every 9 days. The most recent releases landed on September 18, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | USIMPAY | 전북국적+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | — | Free |
| Size | 13 MB | 87 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [moeunnet](https://appshunter.io/developer/1120013859) | [WMASSI, Inc.](https://appshunter.io/developer/1598521206) |

## What reviewers say

### USIMPAY

[App page](https://appshunter.io/ios/app/usimpay/id1551908318)

**Features:** macOS Compatibility

**In-app purchases:** none


### 전북국적+

[App page](https://appshunter.io/ios/app/plus/id6736823072)

This app serves as a mobile audio textbook for individuals preparing for the Korean citizenship interview exam. It offers practice questions and mock interviews to help users study anytime, anywhere, aiming for successful acquisition of South Korean nationality. The content is based on the 'I am also a proud Korean' textbook.

**Highlights:** Mobile audio textbook, Citizenship interview exam preparation, Practice questions, Mock interviews, Study anytime, anywhere, Based on 'I am also a proud Korean' textbook

**In-app purchases:** none


## Frequently asked questions

### Is USIMPAY free?

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

### Is 전북국적+ free?

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

### Do USIMPAY or 전북국적+ have ads?

Neither USIMPAY nor 전북국적+ shows ads.

### Which is updated more often, USIMPAY or 전북국적+?

USIMPAY ships an update monthly, and 전북국적+ every 9 days. Most recently, USIMPAY was updated on September 18, 2026 and 전북국적+ on September 25, 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.*