# 드론 원스톱 민원서비스 vs Smart Spam Filter

The clearest difference is review sentiment: Smart Spam Filter at 98% against 드론 원스톱 민원서비스's 9%. Smart Spam Filter also leads on update cadence (monthly vs every 3 months). 드론 원스톱 민원서비스's advantage is in-app purchases (none vs 2) and iOS requirement (12.1 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Smart Spam Filter sells 2 in-app purchases, starting at $2.99 per month. 드론 원스톱 민원서비스 asks for nothing beyond the download.

드론 원스톱 민원서비스 ships an update every 3 months, Smart Spam Filter monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 드론 원스톱 민원서비스 | Smart Spam Filter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (9 ratings)](https://appshunter.io/ios/app/smart-spam-filter/id6503603784/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | 9.1% of reviews | **98.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 0 MB | 22 MB |
| Requires iOS | **12.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Seoul Regional Office of Aviation](https://appshunter.io/developer/1574617327) | [Junbum Lee](https://appshunter.io/developer/1749481503) |

## What reviewers say

### 드론 원스톱 민원서비스

[App page](https://appshunter.io/ios/app/id1574617235)

This app simplifies drone-related administrative tasks, allowing users to apply for permits, register devices, and obtain flight approvals. It also provides crucial airspace information and helpful resources for drone operators.

**Highlights:** Drone flight permit applications, Device registration and business registration, Airspace information (no-fly zones, control zones), Interactive map for flight coordinate setting, Contact information for regional departments, Application forms and guides

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

**In-app purchases:** none


### Smart Spam Filter

[App page](https://appshunter.io/ios/app/smart-spam-filter/id6503603784)

This AI-powered application automatically filters unwanted spam and smishing messages. It utilizes advanced AI models, both online and on-device, to detect and block new types of fraudulent texts in real-time. Additional features include custom blacklisting and whitelisting for enhanced control.

**Highlights:** AI-based spam/smishing filtering, Online real-time AI detection, On-device AI learning, Keyword and number blocking, Whitelist functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy a cup of coffee per month | $2.99 | per month |
| Support a chicken per year | $29.99 | per year |


## Frequently asked questions

### Is 드론 원스톱 민원서비스 free?

드론 원스톱 민원서비스 is free to download, with no in-app purchases.

### Is Smart Spam Filter free?

Smart Spam Filter is free to download, with in-app purchases available.

### Do 드론 원스톱 민원서비스 or Smart Spam Filter have ads?

Neither 드론 원스톱 민원서비스 nor Smart Spam Filter shows ads.

### Which is updated more often, 드론 원스톱 민원서비스 or Smart Spam Filter?

드론 원스톱 민원서비스 ships an update every 3 months, and Smart Spam Filter monthly. Most recently, 드론 원스톱 민원서비스 was updated on November 3, 2026 and Smart Spam Filter 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.*