Follow your pulse.
Review available heart-rate readings alongside the moments you mark. When there’s enough recent context, see how your session compares.
Coming soon for Apple Watch
Know your
Know your
own signals.
A little curiosity. A few bold questions. A private place to notice your pulse and mark the moments that feel different.
Made for Apple Watch · watchOS 10 or later
No iPhone companion app required.
Your wrist. Your perspective.
Notice a moment.
Make it a little more interesting.
Take the Hot Seat.
Try a round of questions. Mark your own bluffs or tense moments, then pass a text challenge to a friend. Sensors are optional, even when you play.
Give it some context.
Review the last 15 minutes of available readings, or start fresh for a guest. Missing readings stay missing. No made-up scores.
Private by design
Your moments
stay on your Watch.
No account. No app server. No analytics. Keep up to 30 rounds locally, delete them when you choose, and decide whether to allow heart-rate or motion readings.
Read the privacy policyA small app. A curious companion.
We’re preparing Lie Detector for release. The app is not yet available on the App Store. Support and privacy information are ready here.