Make sense of your symptoms.

Take your FibriCheck readings. Note what was going on. Compass finds what the possible cause is of your symptoms.

Compass does not diagnose. It organises your data so you and your doctor can see the patterns clearly. In plain language, never a medical conclusion.

Works with FibriCheck
Compass app home, a daily heart check with the investigation's progress, today's readings, and a prompt to note what was going on
How Compass works

A few weeks, then answers.

Most investigations run 4 to 12 weeks, depending on how often you have symptoms.

Daily

The same 60-second checks.

Measure daily, and also when you have symptoms.

+ 30 sec / day

Note what was going on.

Sleep, stress, coffee, meals, symptoms…

Over time

Patterns emerge.

Compass weighs episodes against lifestyle, over time rather than one moment.

At the end

Your report.

A structured report that links your symptoms to their lifestyle, grounded in known science, and ready for your doctor.

Patterns, not single moments

What one check can't see, time can.

One measurement is one moment. Compass lines your episodes up against what your days looked like, and focuses on the connections research already links to heart rhythm, like alcohol, sleep, stress and caffeine. So the patterns it shows you are the ones known to matter, not chance.

Compass shows what your episodes tend to follow, based on connections already known to affect heart rhythm. It points you toward a conversation, not a conclusion. Your report is for you and your doctor to read together.
Compass Timeline, every reading laid out over days, with symptomatic episodes flagged and the triggers you logged shown beside them
Compass report, 'For you' view, 'We found a clear pattern': atrial fibrillation / flutter happened about 27 times more often after logged alcohol, with a link to open the doctor view
The outcome

Compass and FibriCheck, hand in hand.

Your Compass report shows what your episodes correlate with. The clinical findings live in your FibriCheck report. Together they are structured, readable, and built to walk into an appointment with.

What your symptoms correlate with

The lifestyle that your symptoms tended to follow.

What they are likely to be

In plain language, never a medical conclusion.

Worth discussing with your doctor

Suggested next steps, ready to share.

And if no clear trigger stands out, that is a useful answer too. It tells you and your doctor something as well.

Good to know

Common questions

Compass compares the times you had an irregular rhythm against the times you did not, using only your own data. It checks what tended to come before your episodes — caffeine, poor sleep, stress, alcohol — and whether each shows up more often before an episode than by chance. Compass only highlights a link once it has seen it enough times to be reasonably confident.

It uses a case-crossover design, an established method in medical research for studying what triggers health events.

No. Compass is an organised logbook for your heart. It does not diagnose. It gathers your measurements and context into clear insights you can discuss with your doctor. The decision about what it means stays with you and your doctor.

That still helps. A result of no obvious pattern rules things out and gives your doctor a structured starting point instead of a vague complaint. Compass cannot explain every cause, but it can help you see what is and is not connected.

No. Not every rhythm disorder or symptom has an explanation that can be found this way, and Compass will never pretend otherwise. But where there is a real relationship between your episodes and something in your daily life, Compass is built to bring it to the surface.

No. Compass is in addition to your normal care, not a replacement. If anything urgent appears in your FibriCheck measurements it is handled the way it always is. If you ever have severe or sudden symptoms, seek urgent care and do not wait for Compass.

Yes. The Compass pilot is free to join and you can leave at any time. It is clearly labelled as a test, and your feedback shapes what FibriCheck builds next.

Pilot program

Try Compass first.

Try Compass first and start making sense of your symptoms. You'll get free access to Compass, a structured report to share with your doctor, and the chance to shape a tool built for people like you. Your feedback can make a difference! Rough edges are expected, but your data stays yours and you can leave at any time.