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.
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.
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.
SignalCheck is run at the final step, when ambiguity becomes risk:
SignalCheck is built for professionals who already write competently and cannot afford structural ambiguity:
SignalCheck runs entirely on your machine. Text never leaves the device.
SignalCheck for macOS. One-time license per device. No subscription.
Includes notarized macOS application and local Structural Verification Records.
$249 USD — one-time purchase
Refunds are available within 7 days of purchase if the software fails to function as described.