# 워크캘린더 vs SYSnet AD2

The clearest difference is update cadence: SYSnet AD2 at every 5 days against 워크캘린더's every 11 days. SYSnet AD2 also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

워크캘린더 ships an update every 11 days, SYSnet AD2 every 5 days. The most recent releases landed on October 18, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 워크캘린더 | SYSnet AD2 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 96.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 5 days** |
| Monetization | Free | — |
| Size | 37 MB | 25 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chang Hyun Lee](https://appshunter.io/developer/1661519895) | [Systronics Co.,Ltd](https://appshunter.io/developer/1829336160) |

## What reviewers say

### 워크캘린더

[App page](https://appshunter.io/ios/app/id6596813027)

This app automatically calculates retirement and unemployment benefits based on your work hours. It also provides average wage data for various construction trades and offers a simple backup system via copy-pasting compressed data.

**Highlights:** Automatic retirement and unemployment benefit calculation, Wage data for major construction trades, Site-specific wage comparisons, Easy copy-paste backup and restore, Simple daily work hour registration

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

**In-app purchases:** none


### SYSnet AD2

[App page](https://appshunter.io/ios/app/sysnet-ad2/id6749213641)

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

**In-app purchases:** none


## Frequently asked questions

### Is 워크캘린더 free?

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

### Is SYSnet AD2 free?

SYSnet AD2 is free to download, with no in-app purchases.

### Do 워크캘린더 or SYSnet AD2 have ads?

Neither 워크캘린더 nor SYSnet AD2 shows ads.

### Which is updated more often, 워크캘린더 or SYSnet AD2?

워크캘린더 ships an update every 11 days, and SYSnet AD2 every 5 days. Most recently, 워크캘린더 was updated on October 18, 2026 and SYSnet AD2 on October 3, 2026.

---

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