# 스마트 위택스 vs Skyrex

The clearest difference is update cadence: 스마트 위택스 at every 6 weeks against Skyrex's every 5 months. 스마트 위택스 also leads on iOS requirement (11.0 vs 13.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

스마트 위택스 ships an update every 6 weeks, Skyrex every 5 months. The most recent releases landed on September 22, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 스마트 위택스 | Skyrex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.2 (25 ratings)](https://appshunter.io/ios/app/id888585740/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | **25.6% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | Free | Free |
| Size | 78 MB | 10 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [행정안전부](https://appshunter.io/developer/431558537) | [SUNG DEOK AHN](https://appshunter.io/developer/901288747) |

## 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


### Skyrex

[App page](https://appshunter.io/ios/app/skyrex/id901288744)

This application allows for remote viewing and control of H.264 & H.265 DVR systems. It offers real-time monitoring, PTZ control, search and playback, and relay control. Optional permissions include photo capture, QR code scanning, local network device discovery, and microphone access for two-way audio.

**Highlights:** Real-time monitoring, PTZ control, Time search and playback, Relay control, Zoom and drag functionality, Two-way audio communication

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

**In-app purchases:** none


## Frequently asked questions

### Is 스마트 위택스 free?

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

### Is Skyrex free?

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

### Do 스마트 위택스 or Skyrex have ads?

Neither 스마트 위택스 nor Skyrex shows ads.

### Which is updated more often, 스마트 위택스 or Skyrex?

스마트 위택스 ships an update every 6 weeks, and Skyrex every 5 months. Most recently, 스마트 위택스 was updated on September 22, 2026 and Skyrex on September 15, 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.*