# Simply Filter SMS vs ChathamAlert

The clearest difference is in-app purchases: ChathamAlert at none against Simply Filter SMS's 3. ChathamAlert also leads on device support (4 vs 2) and iOS requirement (13.2 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Simply Filter SMS sells 3 one-off in-app purchases. ChathamAlert asks for nothing beyond the download.

## The numbers

| Metric | Simply Filter SMS | ChathamAlert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (69 ratings)](https://appshunter.io/ios/app/simply-filter-sms/id1603222959/reviews)** | — |
| Number of ratings | **69** | — |
| Positive reviews | 80.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 42 MB |
| Requires iOS | 17.0 | **13.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Adi Ben-Dahan](https://appshunter.io/developer/1603222961) | [Chatham University](https://appshunter.io/developer/700739891) |

## What reviewers say

### Simply Filter SMS

[App page](https://appshunter.io/ios/app/simply-filter-sms/id1603222959)

This app automatically filters unwanted text messages on your iPhone or iPad. It uses AI and customizable rules to sort messages from unknown senders into categories like Junk, Promotions, or Transactions, all processed on your device for privacy.

**Highlights:** AI-powered spam filtering, Customizable keyword rules, Automatic message categorization, On-device processing for privacy, Support for 10 languages, Trusted country filtering

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


### ChathamAlert

[App page](https://appshunter.io/ios/app/chathamalert/id6791278277)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Simply Filter SMS free?

Simply Filter SMS is free to download, with in-app purchases available.

### Is ChathamAlert free?

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

### Do Simply Filter SMS or ChathamAlert have ads?

Neither Simply Filter SMS nor ChathamAlert shows ads.

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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.*