PrismScreen
Spam calls, screened on your phone.
The blocklist downloads to your device and every decision happens there. No call is sent to a server, so we never learn who is calling you. That is architecture, not a promise in a privacy policy.
On-device
Screening runs offline against a synced list. Instant, and private by construction.
Real evidence
FTC Do Not Call complaints, user reports, and structural checks on numbers that cannot be real.
Your call
Tune how aggressive it is, and override any number in either direction.