SignalCheck

Structural verification for high-stakes written communication.

SignalCheck is not a writing assistant. It is a local verification instrument used before documents are sent, published, or signed.

No rewriting. No interpretation. No AI generation.

Why this exists

Ambiguity is not a writing problem. It is a liability problem.

SignalCheck exists to document structural uncertainty before it becomes risk. It runs entirely offline. No cloud processing. No data transmission.

What SignalCheck verifies

View an example Structural Verification Record →

View a Defense / GovCon Verification Record →

Each record includes a cryptographic hash and build identifier.

Output is a deterministic Structural Verification Record. Same input. Same result. Every time.

When it’s used

SignalCheck is run at the final step, when ambiguity becomes risk:

Who it’s for

SignalCheck is built for professionals who already write competently and cannot afford structural ambiguity:

Execution model

SignalCheck runs entirely on your machine. Text never leaves the device.

What you receive

SignalCheck for macOS. One-time license per device. No subscription.

Includes notarized macOS application and local Structural Verification Records.

Price

$249 USD — one-time purchase

Refund policy

Refunds are available within 7 days of purchase if the software fails to function as described.

Purchase

Buy SignalCheck