Sifter - Spam SMS Filter

Name: Sifter - Spam SMS Filter
Rating: 4.1 (98 reviews)
Author: 磊 汪

Spam SMS & MMS Filter

Free

98 Ratings
Ages

4+
Years
Category

Utilities
Developer

磊汪
Language

EN
+ 2 More
Size

10.9
MB

Reclaim your inbox with Sifter, the intelligent and private SMS filter for iOS. Powered by a robust Message Filter extension and secure on-device processing, Sifter gives you absolute control over your messaging experience without compromising your privacy. FOCUS ON WHAT MATTERS Sifter empowers you to design personalized filtering rules to block unwanted texts while keeping your inbox clean and focused. With a refined interface built for speed and clarity, managing your rules is seamless and efficient. KEY FEATURES - RULE-BASED CATEGORIZATION: Easily filter and organize messages into Transactions and Promotions using your own custom rules. - GRANULAR FILTERING: Tailor your protection with specific rules. From simple keywords to sophisticated patterns, you decide exactly what reaches your notification center. - CONTACT MANAGEMENT: Protect your peace of mind by whitelisting trusted contacts or blacklisting specific numbers and entire contact lists. - ADVANCED REGEX ENGINE: Leverage the power of Regular Expressions to create intricate, high-precision filtering rules for complex messaging patterns. - PRIVACY-FIRST ARCHITECTURE: Sifter operates entirely locally on your device. Your messages never leave your phone, ensuring your personal data remains 100% private. SUPPORTED RULE TYPES - Whitelist and Blacklist Users (Contacts/Numbers) - Whitelist and Blacklist Keywords - Transactional and Promotional Categorization - Regex-powered versions of all the above Sifter is your personal gatekeeper. Whether you are blocking marketing noise or organizing important transactional alerts, Sifter provides a private and powerful solution to keep your messaging focused on what truly matters. Download Sifter and take full control over your inbox.

Ratings & Reviews

4.1

out of 5

98 Ratings

Beyond Useful
08/17/2023

HellRazorCustoms
One of, if not the only app in the App Store allowing you to block those annoying, repetitive, unsolicited texts that are sent with click-bait links in hopes you’ll access a Trojan horse or other nefarious link. The “regex” area is a bit difficult if you don’t understand regex, but there are still several other ways to block these texts in bulk, the easiest being by copy and pasting +the+text+you+want+to+block in ⬅️ this format. Then all texts sent after that fit that format will be automatically blocked.
Beyond Useful
08/17/2023

HellRazorCustoms

One of, if not the only app in the App Store allowing you to block those annoying, repetitive, unsolicited texts that are sent with click-bait links in hopes you’ll access a Trojan horse or other nefarious link. The “regex” area is a bit difficult if you don’t understand regex, but there are still several other ways to block these texts in bulk, the easiest being by copy and pasting +the+text+you+want+to+block in ⬅️ this format. Then all texts sent after that fit that format will be automatically blocked.
It Works
03/26/2025

Hey Maestro
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.
It Works
03/26/2025

Hey Maestro

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.
So far it just hasn’t worked.
07/24/2024

Nickname12345zz
So far, I have tried to give it words to blacklist and when I have had people try texting me using those words the text still comes through. So either it isn’t working, or it isn’t user-friendly enough for me to be able to figure out how it works when it looks like I am doing everything right.

Developer Response
the iOS Message Filter extension can only block messages from unknown senders, so you cannot block messages from friends who are already in your contacts.
So far it just hasn’t worked.
07/24/2024

Nickname12345zz

So far, I have tried to give it words to blacklist and when I have had people try texting me using those words the text still comes through. So either it isn’t working, or it isn’t user-friendly enough for me to be able to figure out how it works when it looks like I am doing everything right.
Developer Response 07/30/2024
the iOS Message Filter extension can only block messages from unknown senders, so you cannot block messages from friends who are already in your contacts.
Far from effortless
03/30/2025

elementalair
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.
Far from effortless
03/30/2025

elementalair

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.

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

Version 26.4.9 3d ago

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

Information

Seller: 磊汪
Size: 10.9 MB
Category: Utilities
Compatibility: Requires iOS 17.0 or later.

iPhone
Requires iOS 17.0 or later.

iPad
Requires iPadOS 17.0 or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English and 2 more

English, Simplified Chinese, Traditional Chinese
Age Rating: 4+

4+

Learn More