See it working
Three screens from a real session.
The sensors choose the words
Every word can be traced back to a reading.
The sensors watch
The scan zeroes every channel on the room. That baseline is what quiet means.
The scan detects a change
A hard swing away from the baseline lets a word through. A quiet room stays a quiet app.
The reading picks the word
The disturbed reading picks the word. It is not a random draw.
Using it well
A spirit box is an instrument. Treat it like one.
Keep the phone still
Movement swings the motion sensors and forces false words.
Stay clear of electronics
Speakers, magnets and large metal push the magnetic field around.
Ask, then wait
Nothing comes through until a sensor moves, so a quiet spell is normal.
Trust the transcript
Review the saved session, not what you think you heard in the dark.
Questions
What is Ectograph?
A spirit box app for Android. It reads your phone's sensors and speaks a word when a reading moves.
Which sensors does it use?
The magnetometer, plus light, motion, pressure, temperature, humidity and proximity, where your phone has them.
Does it work offline?
The scan, the voices and the transcript all work offline. Only the session map needs a connection.
What does it cost?
You buy it once on Google Play. There are no ads, no account and no subscription.
Is it on iPhone?
Not yet. Ectograph is on Android today.
