Defndr: SMS Spam Blocker

Stop spam before it reaches you. Defndr blocks scam and phishing texts and sorts the rest into folders — all on-device. No cloud, no tracking, no ads.

Defndr is an SMS firewall that stops spam before it reaches you.

On-device machine learning checks every message from unknown senders, blocks phishing and scams, and quietly sorts the rest into the right folder — without sending anything anywhere. Your messages never leave your iPhone.

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ZERO-TRUST PRIVACY

• 100% on-device processing
• No cloud servers, no analytics, no tracking
• Nothing to sign up for
• Your data stays on your device

FREE

• On-device spam and scam detection
• Custom keyword blocking
• Protection against shortened and disguised phishing links
• Automatic sorting into Transactions, Promotions and Junk
• No ads, no data collection

DEFNDR PRO

• Advanced machine-learning detection for sophisticated scams
• Adjustable sensitivity, from lenient to strict
• Allow and block lists for senders you choose
• Unlimited custom keywords
• Detection for suspicious formatting, links and patterns
• Custom theme studio with a gradient editor

HOW IT WORKS Defndr plugs into iOS Message Filtering and runs silently in the background. Messages from people in your contacts are never touched — only texts from unknown senders are checked, and the verdict is decided entirely on your device.

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Web: https://dro1d.org Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy: https://dro1d.org/defndr-privacy.html