Built by one person. Designed for everyone.

We believe privacy is a right, not a feature. Sentinel Prime builds the technology stack that gives it back to you — on-device AI, a privacy-first phone, a hardened Android OS, and dev tools that never require surrendering your data.

Mission

We believe privacy is a right, not a feature. Sentinel Prime builds the technology stack that gives it back to you.

Founder

Paul Green — Sentinel Prime Inc. — Building privacy-first technology.

Why Sentinel exists

The dominant playbook — centralized inference, opaque training, and default data collection — trains users to surrender context in exchange for convenience. Sentinel exists to break that pattern: local-first execution, explicit consent, and products you can audit.

What big tech gets wrong

When AI lives only in the cloud, every prompt becomes a dataset. When business models depend on engagement, privacy becomes a marketing line instead of an architecture. Sentinel answers with hardware-bound intelligence, minimal telemetry by design, and pricing that does not depend on reselling your life.

Values

Privacy · Transparency · Accessibility · Security

Those words are constraints on the roadmap, not poster copy. If a feature cannot be explained plainly, it does not ship.