less.ms is a full SMS and MMS messaging app for Android with built-in spam filtering. Send and receive messages normally — while less.ms quietly intercepts junk before it ever reaches you. Built on community-curated rules, shared themes, and open collaboration.
less.ms replaces your default messaging app, giving you a clean inbox while handling all your SMS and MMS normally.
Create rules using keywords, regex patterns, sender prefixes, IP ranges, and more. Allow-list trusted contacts to ensure they always get through.
Import curated rule sets shared by the community. One-click import from the discussion forums keeps your filter current with new spam patterns.
Design your own look with the visual theme builder, or browse and import community-designed themes. Every color slot is customizable.
Define text expansion macros for commonly typed replies. Tab-delimited import makes it easy to bring in large macro sets.
Run an on-demand scan of your existing inbox to catch spam that slipped through before you installed less.ms.
Focus Edition uses a cryptographically signed, device-bound token. No internet connection required after activation — works everywhere.
Spam evolves constantly. A single person can't keep up — but a community can. less.ms brings together users to share examples, build rules, and test patterns in real time.
Standard Edition shows you exactly what Focus Edition would block. Upgrade when you're ready to take back your inbox.