Accuracy and limitations

Updated October 25, 2026 · Anlan 1.0

9 in 10

When our latest model says your body clearly settled, it agrees with the reference 9 times out of 10.

Tested on three public research datasets from PhysioNet: 71 people, about 3,000 minutes (51 hours) of recordings the model had never seen.

Key points

What Anlan doesn't judge

Focus, meditation depth and your state of mind. Anlan estimates what your body did, nothing more.

Not a medical device

Anlan is not a medical device. Results are estimates. If you have concerns about your health, talk to a doctor.

Data sources

Anlan's model contains information from the Fantasia Database, the CEBS Database (Combined measurement of ECG, Breathing and Seismocardiograms) and the Heart Rate Oscillations during Meditation database, available from PhysioNet under the Open Data Commons Attribution License v1.0.

Coming soon to the App Store

Anlan 1.0 is in beta testing, for Apple Watch and iPhone.