# CallNinja vs 스르륵

The clearest difference is in-app purchases: CallNinja at none against 스르륵's 1. 스르륵's advantage is update cadence (every 3 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

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

CallNinja ships an update every 3 months, 스르륵 every 3 days. The most recent releases landed on October 25, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | CallNinja | 스르륵 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/id6798074875/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 4 MB | 3 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [sunguk park](https://appshunter.io/developer/1873227147) | [sanghyun joo](https://appshunter.io/developer/6798074877) |

## What reviewers say

### CallNinja

[App page](https://appshunter.io/ios/app/callninja-spam-call-blocker/id6762523084)

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

**In-app purchases:** none


### 스르륵

[App page](https://appshunter.io/ios/app/id6798074875)

This keyboard app offers intuitive gesture controls for typing and editing Korean text. Swipe the spacebar to move the cursor and swipe backspace to delete. It also features quick access to numbers, symbols, and frequently used phrases.

**Highlights:** Swipe spacebar for cursor movement, Swipe backspace for deletion, Quick access to numbers and symbols, Save and paste frequently used phrases, Customizable themes and layout, Clipboard history

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 스르륵 프로 | $6.99 | one-time |


## Frequently asked questions

### Is CallNinja free?

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

### Is 스르륵 free?

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

### Do CallNinja or 스르륵 have ads?

Neither CallNinja nor 스르륵 shows ads.

### Which is updated more often, CallNinja or 스르륵?

CallNinja ships an update every 3 months, and 스르륵 every 3 days. Most recently, CallNinja was updated on October 25, 2026 and 스르륵 on November 6, 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.*