Seeing not a single day, but what changes between the days.

Taken one at a time, those signals are easy to miss. But a few days together can already show a trend.

POLARITY was built for exactly that: to keep enough context that changes become easier to see over time.

Not to predict an episode. Not to diagnose. Not to tell you how you “should” feel.

To help you reconstruct your own history from data, and not from memory alone.

Built for bipolar from the start

POLARITY is not an ordinary mood tracker with the word bipolar added later.

At the base of the product is the reality of bipolar disorder: mood matters, but it is only part of the picture. Sleep, energy, irritability, anxiety, stress, medication, substances and changes in routine can all carry important context.

So the daily check-in covers several measures while staying short enough for an ordinary day.

Made from lived experience

POLARITY did not come from an idea to make one more wellness app.

When your state shifts, complicated habits and long journals are often the first things there is no attention left for. A tracker has to work when there is little energy, when there is too much of it, and when sleep falls apart.

So the foundation of POLARITY is a short check-in. The least effort today, so that enough context is left for later.

A companion, not a doctor

POLARITY can help you notice a pattern. Deciding what it means for your health or your treatment is not the app’s job.

POLARITY does not diagnose mania, hypomania, depression or any other state, does not prescribe treatment, and does not replace a psychiatrist, a therapist, a doctor or any other qualified professional.

The aim is narrower: to help you see what happened between two appointments, two weeks, or two periods of your life.

AI works with your data, it does not take it

On compatible devices, AI Reflections are generated with Apple Intelligence directly on the device. Check-ins are not sent to a POLARITY server or to an external AI service for analysis.

An AI Reflection looks for trends in the available data and describes them as observations. It is not a diagnosis or a medical recommendation.

The first AI Reflection opens after three days of check-ins. Deeper reflections covering whole periods are available with Premium.

Privacy is not a Premium feature

Data about your mental state is among the most personal data a phone can hold. Looking at your own chart should not require sending it to a company.

POLARITY has no user account and no backend of ours holding your journal. Data is stored locally and, if you want it, synced through your own private iCloud database. Apple Health is read-only.

No advertising. No analytics SDKs. No selling of data.

Progress without punishment

Many apps turn consistency into an obligation: miss a day and you lose a streak, an achievement, or the sense of making progress.

POLARITY has milestones, progress and Moondust, but a missed day does not erase the history you have already built.

Check-ins earn Moondust, which can be spent on the AI Reflections and reports available to you. It cannot be bought for money.

Coming back is worth it for your own history, not to rescue a counter.

A history that is useful outside the app

POLARITY builds reports for 7, 14, 30 or 60 days, and with Premium for a custom period of up to a year. A report can gather mood, other measures, sleep, medication, daily factors and the history day by day.

Keep it for yourself, use it before an appointment, or share it with a professional — the decision stays yours.

What we want to build

We want POLARITY to become the personal history of your own rhythm.

A few seconds a day turn, over time, into a picture that memory alone would struggle to reconstruct.

Not an authority over your state. Not a machine that hands out a label.

A tool that helps you see what actually happened.