What we cover
The JustBlocked Editorial Team explains how unwanted calls, caller-ID spoofing and emerging technologies affect people using mobile phones. We translate technical and regulatory material into practical guidance that helps readers recognize risks and make informed call-screening decisions.
How we research
Our safety articles prioritize primary sources such as standards bodies, consumer-protection agencies and official platform documentation. We distinguish caller authentication from caller intent and avoid presenting any single technology or reputation score as complete protection.
Our product perspective
JustBlocked is developed by Thofer Labs for Android. Its approach emphasizes user-controlled, on-device rules. Product explanations are linked to the JustBlocked instruction guide, while data-handling commitments are documented in the privacy policy.
Read our call-safety research
Browse the complete JustBlocked Call Safety research library, including field reports, product research and practical guides about spam calls, caller identity, voicemail and privacy-first call control.
Start with We Spent a Year Building a Call Blocker. The Number Wasn’t the Real Problem. for the field report that connects a year of development observations to the design decisions behind JustBlocked.
Then read How Spoofed Numbers and AI Evade Call Blockers, which explains caller-ID manipulation, STIR/SHAKEN, number rotation and AI-generated voices.
Then read Why Spam Number Databases Fail—and What Modern Call Screening Should Do Instead for a closer look at reputation lag, false labels and user-controlled call policy.
Our Core Community Mission explains why privacy, local decision-making and a business model that does not monetize personal call data belong at the center of call protection.