Objective monitoring between visits.

Polarity turns the phone and wearable data people already have into a clear record of the weeks between psychiatric appointments.

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The Polarity clinician view: a summary sentence, a day-by-day timeline of changes per signal, and key figures, with example data
The Polarity app home screen: 'Your patterns look consistent with your usual range', with sleep, energy and activity and each person's usual range

Screens from the Polarity prototype, with example data.

A visit captures one day. Polarity shows the weeks in between.

A clinician listening to a patient during a follow-up visit
Data
Sleep, daily rhythm, activity and heart-rate variability, measured passively by the phone or a validated wearable. A couple of minutes of check-ins a day.
Method
A personal baseline for every patient, and documented statistics that can be inspected.
Output
Short observations in plain language, for the clinician to interpret.
For clinics

Follow-up between visits, for psychiatric outpatients.

Start each visit with an overview of the weeks since the last one, and see changes as they build up. For clinics in the Nordics and Germany.

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For trials

Continuous real-world data for clinical studies.

Daily measures between study visits, as change from each participant's baseline, delivered as a documented dataset.

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What the research shows

Polarity starts with the signals most consistently linked to changes in mood disorders.

60%

of people treated for depression in specialist mental healthcare have a new episode within five years.

Hardeveld et al., Acta Psychiatr Scand 2010 · systematic review

77%

Disturbed sleep is the most consistent early sign of mania, reported in a median of 77% of cases across studies.

Jackson, Cavanagh & Scott, J Affect Disord 2003 · 17 studies, 1,191 people

20+ days

The typical length of the early phase before mania, reported consistently across studies. Long enough to show up in data collected between visits.

Jackson, Cavanagh & Scott, J Affect Disord 2003

Designed for regulated care

Polarity is being developed as medical device software under EU MDR. A quality system for clinical trials and medical device software is being established ahead of CE marking.

Consent per signal
Patients choose what they share and can withdraw consent at any time.
Traceable
Every observation is logged with the data and settings behind it.
Clinical judgement stays with the clinician
Polarity describes change. It does not diagnose or recommend treatment.
EU data protection
Designed for GDPR, with personal data stored and processed within the EU.

The team

Jennifer Wiklund

Jennifer Wiklund

Founder & CEO

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Open role

Technical co-founder

Bring psychiatry into the 21st century. We're looking for an experienced regulated software engineer.

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