# U+스팸차단 vs Moon Whisper

The clearest difference is in-app purchases: U+스팸차단 at none against Moon Whisper's 3. U+스팸차단 also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.0). Moon Whisper's advantage is update cadence (every 5 weeks vs every 19 months). On price and device support there is nothing between them.

Both are free to download. Moon Whisper sells 3 in-app purchases, starting at $0.99 per month. U+스팸차단 asks for nothing beyond the download.

U+스팸차단 ships an update every 19 months, Moon Whisper every 5 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | U+스팸차단 | Moon Whisper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.4 (18 ratings)](https://appshunter.io/ios/app/u-plus/id994846408/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 29.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 13 MB | 88 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [LG Uplus](https://appshunter.io/developer/372558480) | [jihoon lee](https://appshunter.io/developer/1848021793) |

## What reviewers say

### U+스팸차단

[App page](https://appshunter.io/ios/app/u-plus/id994846408)

This app helps block unwanted spam messages and calls on your smartphone. It offers customizable settings for allowing specific contacts or phrases, and automatically filters common spam types. You can also review blocked messages in a dedicated spam folder.

**Highlights:** Allow specific contacts and phrases, Review blocked messages, Automatic spam filtering, Customizable spam blocking levels, Dual SIM support

**In-app purchases:** none


### Moon Whisper

[App page](https://appshunter.io/ios/app/moon-whisper-ai-reply-diary/id6754352478)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 월간 베이직 | $0.99 | per month |
| 월간 프리미엄 | $2.99 | per month |
| 프리미엄 연간 | $14.99 | per year |


## Frequently asked questions

### Is U+스팸차단 free?

U+스팸차단 is free to download, with no in-app purchases.

### Is Moon Whisper free?

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

### Do U+스팸차단 or Moon Whisper have ads?

Moon Whisper shows ads; U+스팸차단 does not.

### Which is updated more often, U+스팸차단 or Moon Whisper?

U+스팸차단 ships an update every 19 months, and Moon Whisper every 5 weeks. Most recently, U+스팸차단 was updated on November 1, 2026 and Moon Whisper on October 30, 2026.

---

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