# Smart Spam Filter vs 단자음키

The clearest difference is rating: 단자음키 at 5.0 against Smart Spam Filter's 4.4. 단자음키 also leads on in-app purchases (none vs 2) and update cadence (fortnightly vs monthly). Smart Spam Filter's advantage is ratings volume (9 vs 1). On price, review sentiment, 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. 단자음키 asks for nothing beyond the download.

단자음키 holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Smart Spam Filter has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 98% of Smart Spam Filter's written reviews are positive against 100% of 단자음키's.

Smart Spam Filter ships an update monthly, 단자음키 fortnightly. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Smart Spam Filter | 단자음키 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (9 ratings)](https://appshunter.io/ios/app/smart-spam-filter/id6503603784/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6741346447/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 98.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 13 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Junbum Lee](https://appshunter.io/developer/1749481503) | [desun ji](https://appshunter.io/developer/1479364225) |

## What reviewers say

### 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 |


### 단자음키

[App page](https://appshunter.io/ios/app/id6741346447)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Smart Spam Filter free?

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

### Is 단자음키 free?

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

### Which has better reviews, Smart Spam Filter or 단자음키?

단자음키 is rated higher. Smart Spam Filter averages 4.4 out of 5 from 9 ratings, while 단자음키 averages 5.0 from 1 ratings.

### Do Smart Spam Filter or 단자음키 have ads?

Neither Smart Spam Filter nor 단자음키 shows ads.

### Which is updated more often, Smart Spam Filter or 단자음키?

Smart Spam Filter ships an update monthly, and 단자음키 fortnightly. Most recently, Smart Spam Filter was updated on October 27, 2026 and 단자음키 on October 30, 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.*