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Sifter - Spam SMS Filter

Sifter - Spam SMS Filter

Spam SMS & MMS Filter

99 ratings
11 reviews
🔧 Utilities
📊 Productivity
$2.99

Price history

Details

  • Released
  • Updated
  • September 19, 2017
  • April 9, 2026

Developer

磊 汪
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iphone
ipad
📈66.89%
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⭐11
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❓8 answered
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About

This app provides a smart spam filter for iOS devices, allowing users to create personalized rules to block unwanted text messages. It prioritizes user privacy with local processing and offers advanced filtering options like regular expressions.

✓Customizable filtering rules
✓Blacklist and whitelist contacts
✓Regex filtering for advanced control
✓Local data processing for privacy
✓Blocks unwanted SMS and MMS
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What's New in Sifter

26.4.9

April 9, 2026

This release introduces a redesigned interface, major architectural improvements, and new Transactions and Promotions filters for a faster, more refined experience.

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User reviews

Most RecentHighest RatedLowest Rated

Useless

Does not work and instructions are in Chinese
robyfernbororobyfernboro

Far from effortless

Almost completely incomprehensible UX. No instructions anywhere. Why not have a new option in individual spam messages to send the number to the blacklist? No way to do this without manually and awkwardly copy pasting the number into the app. Ridiculous. What a letdown and waste of money.
elementalairelementalair

It Works

Works great. You must enable ‘Filter Unknown Senders’ and add numbers you trust to your contacts. I use it to block incessant political campaign spam texts.
Hey MaestroHey Maestro

Anything to stop the texts

I’ll give it a go!
It’s not very counterintuitive though! Any tutorials out there?
PrimeberryPrimeberry

Tried to blockPolitical ads

Doesn’t work!!! Still getting just as many!
I’ve put in all the keywords.
Waste of $3!
Very dissatisfied
DitumsDitums
See 6 more reviews

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FAQ

How does Sifter filter spam messages?

Sifter uses a robust Message Filter extension on iOS 13 and above. You can create personalized rules, including blacklisting and whitelisting specific contacts or using regular expressions to define complex filtering criteria.

Is my personal information safe with Sifter?

Yes, Sifter prioritizes your privacy by operating locally on your device. This means your personal information and filtering rules remain secure and are not processed on external servers.

What types of filtering rules does Sifter support?

Sifter supports a variety of rule types including whitelisting and blacklisting individual users, groups of users, and using regular expressions for both whitelists and blacklists.

Can I use Sifter on my iPad?

Sifter is compatible with iPhones and iPads, providing spam filtering capabilities across your Apple devices.

How often is Sifter updated?

The latest version of Sifter is 25.9.10, and it was last updated on September 10, 2025. Updates typically include new features, bug fixes, and performance improvements.

What is the price of Sifter?

Sifter is a paid application available for a one-time purchase of $2.99.

What is the age rating for Sifter?

Sifter has an age rating of 4+, making it suitable for a wide range of users.

What do users like about Sifter?

Users appreciate Sifter's ability to provide a spam-free messaging experience tailored to their preferences. Its local processing and customizable rules are frequently highlighted as key benefits.