Membrane 4+

Precisely filter SMS junk


    • 5.0 • 1 Rating
    • Free

iPhone Screenshots


Membrane is a precise, privacy-conscious, and fully local text message filter that keeps junk away from your notifications and Messages inbox. Create filters to label incoming SMS messages as transactions, promotions, or junk. Or use the built-in automatic filter to automatically label messages.

Your inbox, your rules: craft precise, expressive filters to label messages.

• Configure filters based on incoming message content, sender IDs, phone numbers, message language, and message size.
• Label matching messages as transactions, promotions, or junk.
• Enjoy the quiet: junk messages don’t appear in your notifications or inbox.
• Comprehensive string matching: “contains”, “begins”, “ends”, “equals”, and more.
• Full support for regular expressions, a powerful way to match patterns in text.

Automatic filter: effortlessly label messages with the built-in automatic filter, and keep your inbox clean.

• The automatic filter works in addition to your own filters.
• Zero configuration. Enable or disable it at any time.

Principled: We know SMS messages sometimes contain sensitive information such as login codes. Membrane was designed with privacy and security as uncompromisable principles. Here’s our promise:

• Filtering happens entirely on-device. Messages never leave your iPhone.
• Membrane will never collect or share any data.
• Membrane never accesses the internet.

Please note that Membrane is only able to filter SMS & MMS messages from unknown senders. It is unable to filter iMessage messages and messages from your contacts.

What’s New

Version 2022.6

We fixed a user-interface bug that occurred sometimes when editing an existing condition.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

App Privacy

The developer, Littleroot, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

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

You Might Also Like