# 서울스마트불편신고 vs ninna

The clearest difference is in-app purchases: 서울스마트불편신고 at none against ninna's 1. 서울스마트불편신고 also leads on update cadence (every 4 months vs every 9 months) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. ninna sells 1 one-off in-app purchase. 서울스마트불편신고 asks for nothing beyond the download.

서울스마트불편신고 ships an update every 4 months, ninna every 9 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 서울스마트불편신고 | ninna |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (4 ratings)](https://appshunter.io/ios/app/id547521233/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 34.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Size | 24 MB | 123 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seoul Metropolitan Government](https://appshunter.io/developer/444447999) | [Mijin Song](https://appshunter.io/developer/1494081857) |

## What reviewers say

### 서울스마트불편신고

[App page](https://appshunter.io/ios/app/id547521233)

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

**In-app purchases:** none


### ninna

[App page](https://appshunter.io/ios/app/ninna/id6446347819)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $0.99 | one-time |


## Frequently asked questions

### Is 서울스마트불편신고 free?

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

### Is ninna free?

ninna is free to download, with in-app purchases available.

### Do 서울스마트불편신고 or ninna have ads?

Neither 서울스마트불편신고 nor ninna shows ads.

### Which is updated more often, 서울스마트불편신고 or ninna?

서울스마트불편신고 ships an update every 4 months, and ninna every 9 months. Most recently, 서울스마트불편신고 was updated on October 29, 2026 and ninna on October 27, 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.*