Signal Mirror
Record yourself answering an interview question, running through a presentation or preparing for a hard conversation. Signal Mirror finds the moments where your voice energy, pauses, framing or facial movement changed, so you can replay them in context. It shows you signals. It never hands down a verdict.




What it does
Signals, not verdicts
The app does not detect lies, diagnose emotion or read character. A pause can mean many things, and the app keeps that uncertainty visible instead of pretending to know.
The evidence is in the app
An evidence library links the named research explaining why voice and facial movement cannot support a deception or single-emotion verdict — so you can check the claim, not just take it.
A rehearsal room, not a stage
Everything is analysed on the phone. No account, no upload, no one else ever sees the recording unless you decide to share it.
Questions
Is this a lie detector or emotion reader?
Where do my recordings go?
Is there a subscription?
Details
This app collects nothing. No account, no analytics, no advertising identifier.