SmishAlert: Spam Text Blocker
Filter scam & phishing texts
About
This app uses on-device machine learning to detect and filter suspicious SMS messages, QR codes, and calls. It helps protect your privacy by analyzing content locally without sending it to servers unless you report it.
What's New in SmishAlert
6.0
September 28, 2026
SmishAlert Personal is now free: on-device text filtering, Practice Inbox, and up to 10 reports a month, no purchase needed. New: Practice Inbox. Train on simulated scam messages inside SmishAlert. These are not real texts, never appear in Messages, and always show a Practice banner. Opt in on your device and turn it off anytime in Settings. Unknown Guard is now $4.99 a month or $49.99 a year, and adds unknown-sender screening and 30 reports a month. Also: reporting from the share sheet and Report Junk now works on the free plan, and a clearer welcome screen for personal use.
MoreSubscriptions & In-App Purchases
Personal Report-Only
Report messages for social engineering attack analysis
Developer apps
FAQ
What is SmishAlert?
SmishAlert is a mobile security application that uses on-device machine learning to detect and filter suspicious SMS messages, QR codes, and calls. It aims to protect users from phishing and smishing attacks by analyzing content locally.
How does SmishAlert protect my privacy?
SmishAlert is designed with privacy in mind. SMS filtering is performed entirely on-device, and message content is not uploaded for classification or training. Only content you explicitly choose to report is shared for analysis.
What types of messages can SmishAlert filter?
SmishAlert can filter SMS messages into categories like Clean, Promotion, Transaction, and Junk. It also detects 'quishing' threats from QR codes and can analyze screenshots from various apps.
Does SmishAlert have ads?
No, SmishAlert does not contain advertisements. Its monetization comes from optional in-app purchases for additional alerts and subscription plans.
What are the pricing options for SmishAlert?
SmishAlert offers a free first alert. Paid options include a monthly subscription for $4.99, an annual subscription for $49.99, and one-time extra alerts for $0.99 each.
Can I try SmishAlert before subscribing?
Yes, SmishAlert offers a 7-day free trial for both its monthly and annual subscription plans, allowing you to test its features before committing.
How often is SmishAlert updated?
The latest version of SmishAlert is 3.1.1, and it was last updated on April 15, 2026. This indicates a commitment to regular updates and improvements.
What devices is SmishAlert compatible with?
SmishAlert is available for iPhone and iPad devices. It is rated for ages 4 and up.
