# ONEPASS PRO vs 4대보험계산기

The clearest difference is ads: ONEPASS PRO at none against 4대보험계산기's shown. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 19, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ONEPASS PRO | 4대보험계산기 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | — | Ad-supported |
| Size | 22 MB | 38 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KUK HYEONG KIM](https://appshunter.io/developer/1037784257) | [Seulki Eom](https://appshunter.io/developer/1718927408) |

## What reviewers say

### ONEPASS PRO

[App page](https://appshunter.io/ios/app/onepass-pro/id1664692578)

**Features:** macOS Compatibility

**In-app purchases:** none


### 4대보험계산기

[App page](https://appshunter.io/ios/app/4-4/id6502225480)

Easily calculate mandatory social insurance premiums for both employees and employers. Input basic salary information to quickly determine contributions for national pension, health insurance, long-term care insurance, and employment insurance.

**Highlights:** Employee social insurance calculation, Employer social insurance calculation, National pension calculation, Health insurance calculation, Long-term care insurance calculation, Employment insurance calculation, Industrial accident insurance calculation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ONEPASS PRO free?

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

### Is 4대보험계산기 free?

4대보험계산기 is free to download, with no in-app purchases.

### Do ONEPASS PRO or 4대보험계산기 have ads?

4대보험계산기 shows ads; ONEPASS PRO does not.

### Which is updated more often, ONEPASS PRO or 4대보험계산기?

ONEPASS PRO ships an update every 3 months, and 4대보험계산기 every 3 months. Most recently, ONEPASS PRO was updated on September 19, 2026 and 4대보험계산기 on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*