This open-source Android app blocks calls and texts without becoming my Phone app

SpamBlocker’s release of an open‑source Android app that blocks calls and texts without becoming the default Phone app marks a notable shift in how spam filtering can be deployed directly on user devices. By operating as a lightweight overlay rather than a full‑stack phone client, SpamBlocker leverages community‑maintained blocklists and AI‑driven pattern detection to intercept unwanted communications before they reach the user’s inbox. For website owners, this development signals that a growing segment of mobile traffic will now be pre‑filtered at the device level, reducing the likelihood that spammy phone‑number verification links or SMS‑based login codes generated by bots reach real users. Consequently, metrics that previously counted high bounce rates from spam‑related verification failures may improve, but owners must also anticipate that legitimate AI‑driven outreach (e.g., SMS marketing) could be unintentionally blocked if it matches the app’s heuristics. **Actionable tips:** 1. **Update your llms.txt** to explicitly list your verification‑related phone numbers and SMS shortcodes in the `allowed-sms-senders` section, ensuring SpamBlocker’s blocklists recognize them as trusted. 2. **Monitor bot traffic** with llmscentral’s real‑time AI bot tracker, focusing on spikes in failed SMS verification attempts that may indicate new blocklist entries. 3. **Provide alternative verification channels** (email or authenticator apps) and clearly communicate these options on your login pages to capture users whose SpamBlocker app blocks your SMS messages.