# Shield vs Smart Spam Filter

The clearest difference is price: Smart Spam Filter at Free against Shield's $0.99. Smart Spam Filter also leads on review sentiment (98% vs 90%) and iOS requirement (16.0 vs 26.0). Shield's advantage is in-app purchases (none vs 2). On rating, ratings volume, update cadence and ads there is nothing between them.

Smart Spam Filter is free to download; Shield costs $0.99 up front. Smart Spam Filter sells 2 in-app purchases, starting at $2.99 per month. Shield asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Shield against 4.4 for Smart Spam Filter. Both are backed by a comparable volume of ratings — 8 and 9 respectively. Written reviews are what separate them: 90% of Shield's written reviews are positive against 98% of Smart Spam Filter's.

Shield ships an update every 3 weeks, Smart Spam Filter every 2 weeks. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Shield | Smart Spam Filter |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.4 (8 ratings)](https://appshunter.io/ios/app/shield-spam-text-filter/id6503194185/reviews) | [4.4 (9 ratings)](https://appshunter.io/ios/app/smart-spam-filter/id6503603784/reviews) |
| Number of ratings | 8 | **9** |
| Positive reviews | 90.0% of reviews | **98.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 8 MB | 23 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [TRILLIWON, Co.](https://appshunter.io/developer/1050731374) | [Junbum Lee](https://appshunter.io/developer/1749481503) |

## What reviewers say

### Shield

[App page](https://appshunter.io/ios/app/shield-spam-text-filter/id6503194185)

This utility app uses AI to filter and categorize SMS messages, blocking spam and organizing your inbox. It offers customizable filters and a privacy-first approach to keep your communications clean and secure.

**Highlights:** AI-driven spam filtering, Privacy-first data handling, Unlimited customizable filters, Intelligent message categorization, Easy setup and user-friendly interface

**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 Shield free?

Shield costs $0.99, with no in-app purchases.

### Is Smart Spam Filter free?

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

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

Shield and Smart Spam Filter are both rated 4.4 out of 5 on the App Store, from 8 and 9 ratings respectively.

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

Neither Shield nor Smart Spam Filter shows ads.

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

Shield ships an update every 3 weeks, and Smart Spam Filter every 2 weeks. Most recently, Shield was updated on October 17, 2026 and Smart Spam Filter on October 18, 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.*