Undetectable

Nail every PM case interview.

Real-time AI that listens to your interviewer, detects the case type, and surfaces structured guidance in a floating overlay. Invisible to screen share.

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macOS 14.4+ / Apple Silicon recommended / v0.0.20

Signal Forge AI
I

Interviewer

“Our ride-sharing client has seen a 15% drop in revenue over the last two quarters. How would you approach this?”

Root Cause Analysis

Hypothesis Formation

  1. 1.Clarify the metric — is it total revenue, revenue per ride, or both?
  2. 2.Segment supply vs. demand — fewer rides or lower price per ride?
  3. 3.Check external factors — regulation, competitor entry, seasonality
  4. 4.Examine internal changes — pricing model, driver incentives, app updates
  5. 5.Prioritize hypotheses by impact and testability

Compatible with every tool

Z
Zoom
S
Slack
W
Webex
T
Microsoft Teams
G
Google Meet

Key Differentiator

Undetectable in every way.

Invisible to screen share. Signal Forge AI never shows up in shared screens, recordings, or external meeting tools. Your interviewer will never know.

01

Invisible to screen capture

Our overlay uses macOS window levels that are excluded from screen recording and sharing APIs.

02

No meeting bot

Signal Forge AI runs locally on your Mac. No bot joins your call. No participant list footprint.

03

Click-through overlay

The guidance overlay is transparent to mouse events. Interact with your meeting app right through it.

How It Works

Three steps. Zero setup.

1

It listens.

Signal Forge AI captures your interviewer’s audio in real time. It hears the question as it’s being asked.

[ Audio waveform ]
2

It understands.

Instantly recognizes which case type is being asked. Product Sense, Metrics, RCA, or Estimation.

[ Case detection ]
3

It guides you.

Surfaces a clean, step-by-step framework in a floating overlay. You stay structured. Your interviewer sees nothing.

[ Framework overlay ]

FAQ

Common questions

Your thinking, amplified.

This isn't a tool for practice mode. It's built for the moment when performance matters.

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macOS 14.4+ · Apple Silicon recommended