Guides
Spam Caller Blocking Guides
Everything you need to quiet an Android phone: how spam callers get through, how unknown-number rules work, and the Block Guard settings that help reduce unwanted interruptions.
How to Use Block Guard
A complete setup and tuning guide for permissions, trusted contacts, blocking rules, profiles, SMS filtering, logs, backup, and troubleshooting.
Read the guide →Spam Call Blocker for Android
What to look for in an Android spam call blocker and how Block Guard fits the job.
Read the guide →Block Spam Callers
How to reduce repeat spam callers with trusted contacts, unknown-caller rules, and reviewable logs.
Read the guide →Unknown Caller Blocker
How to handle unknown callers without accidentally blocking important calls.
Read the guide →Spam Call Blocker for Seniors
A safer setup for parents and grandparents that keeps trusted callers reachable.
Read the guide →Spam Call Blocker FAQ
Answers to the most common questions about Block Guard, spam callers, unknown numbers, spoofed caller IDs, and Android setup.
Browse the FAQ →Block Spam Callers Without Blocking Everyone
Block Guard gives Android users practical spam-call controls, trusted-contact exceptions, unknown-caller rules, and blocked-call visibility so real people can still reach you.