TextSieve

TextSieve helps you filter spam, scam, and unwanted text messages with private, customizable rules that run on your iPhone.

Your messages stay on your device. TextSieve does not collect personal information, does not upload SMS content, does not require an account, does not show ads, and does not use advertising or tracking SDKs.

Built for common U.S. text spam and scam patterns, TextSieve includes local rules for package delivery scams, unpaid toll notices, bank phishing alerts, verification-code phishing, utility shutoff scams, suspicious links, investment scams, adult spam, political texts, and marketing messages.

Customize your protection:

• Turn filtering categories on or off
• Add trusted senders to an allow list
• Block unwanted senders
• Add keywords that should always be allowed
• Add keywords that should be filtered
• Test sample messages locally before changing your setup
• Import and export your rules as a local JSON backup
• Reset to the built-in rule set at any time

TextSieve is designed for people who want control without giving up privacy. Rules are stored locally, filtering happens locally, and your message content is not sent to a server.

To enable SMS filtering, install TextSieve, then open iPhone Settings > Apps > Messages > Unknown & Spam. Turn on Filter Unknown Senders and select TextSieve as your SMS filter.

Filtering depends on your rules and iOS message filtering behavior. Always review important messages carefully before taking action.