A check-in built for real days
Track mood, depressive thoughts, energy, anxiety, irritability and stress load, then add context such as sleep, food and water, medication, substances and other daily factors.
Notice the pattern, not just the day.
Local-first, private, and designed for the days when tracking is the last thing you want to do.
No account. No servers. No tracking.
Daily check-in
One check-in. The signals that matter.
Mood, depressive thoughts, energy, anxiety, irritability and stress load — plus sleep, food and water, medication, substances and other daily factors. Fast enough to use every day, detailed enough to become useful over time.
- Quick dials, sliders and taps
- Daily factors that add context to the numbers
- Miss a day and continue when you can
Sleep
Irritability
Stress
Anxiety
Drag a fader — this is the check-in
Trends & Insights
See what changes over time.
A day is a state. A stretch of days can become a pattern. POLARITY brings your check-ins and body signals together so changes are easier to see.
EnergySteady vs earlier
49%
MoodSteady vs earlier
72%
Anxiety+5 pts vs earlier
31%
IrritabilitySteady vs earlier
34%
Food & waterSteady vs earlier
86%
- Trends across mood, energy, anxiety, irritability and more
- Stability and change over time
- Sleep, activity and heart signals beside your check-ins
Stability
One reading, built from fourteen days.
53%
Mostly stable
ChaosStable
Descriptive, never diagnostic — a summary of what you logged, not a clinical score.
Apple Health
Your body's signals, in context.
With your permission, POLARITY reads selected Apple Health signals and puts them beside your check-ins — read-only and processed on device.
- Sleep, activity and heart-related signals such as heart rate, HRV, resting heart rate, blood oxygen and respiratory rate
- Read-only — POLARITY never writes to Health
- Everything stays on your device
As you go
It opens up as you go.
After three days of check-ins, your first AI Reflection becomes available. After seven days, reports and longer-range views begin to open up.
AI Reflection
A private reflection on the patterns in your recent entries, generated with Apple Intelligence directly on your device. It is reflection, not diagnosis, and is always labeled “Not medical advice”.
A report to keep or share
A clean PDF for 7, 14, 30 or 60 days — or a custom range up to one year with POLARITY Premium. Keep it for yourself or share it with a specialist.
Moondust
Earned by checking in. Never sold.
Moondust is the in-app resource behind AI Reflections and reports. Check-ins are the only way it arrives.
Privacy
Yours, and only yours.
No accounts, no servers, no tracking. Your data lives on your device and syncs, encrypted, only through your own iCloud.
- Local-first
- Entries are written to the app's private storage on your device.
- Your own iCloud
- Sync travels between your device and Apple. The developer cannot read it.
- No analytics SDKs
- No ad networks, no third-party trackers, no behavioural profiling.
Everything in POLARITY
Small on the surface. Considered underneath.
Word scales, not just numbers
Mood and depressive thoughts use readable word scales — Depression → Euphoria and None → Unsafe — while the numbers stay underneath.
Trends & Insights
See trends across your check-ins, stability over time, and how Apple Health signals line up with the days you logged.
AI Reflection
A private reflection generated on device with Apple Intelligence. Your first becomes available after three days of check-ins.
Reports
Turn your history into a clean PDF for 7, 14, 30 or 60 days, or a custom range up to one year with Premium.
Apple Health
Reads selected sleep, activity and heart signals from Apple Health — read-only, processed on device and never written back.
Reminders & widgets
Daily check-in and medication reminders, plus widgets that keep the next useful action close.
Medication tracking
One tap to mark a dose — no nagging and no guilt. Just a quiet record of what you take, and when.
Achievements & milestones
Milestones for the history you build, including hard-day check-ins, without turning a gap into failure.
Good to know
Questions, answered calmly.
A few honest answers. For everything else, we're one email away: support@mypolarity.app.
Is POLARITY a medical app?
No. POLARITY is a self-observation tool, not a medical device. It does not diagnose, treat or replace professional care. It helps you record what is happening and notice patterns in your own data.
Where is my data stored?
On your device — no accounts, no servers, no analytics SDKs. It's also mirrored to your own private iCloud unless you turn that off in Settings; your data travels only through your own iCloud, and the developer can't access or read it.
How does the AI Reflection work?
It is generated on your device with Apple Intelligence. Your first AI Reflection becomes available after three days of check-ins. Your entries are not sent to an external AI service.
Do I need an account?
No. There's nothing to sign up for — POLARITY has no accounts and no servers. iCloud sync is on by default and rides your device's own Apple ID; you can turn it off in Settings.
How much does POLARITY cost?
POLARITY includes a 14-day free period from your first check-in. Premium is $8.99/month or $69.99/year through the App Store and unlocks deeper period reflections, reports and longer-range analysis. Check-ins earn Moondust, which is used inside the app and is never sold. Your logged history remains yours whether or not you subscribe.
Where can I get POLARITY?
POLARITY is available on the App Store. No account is required.
Built for bipolar
Start with today.
One check-in is enough to begin. Three days can open your first AI Reflection. Seven days can start turning individual entries into a wider view.
Built for bipolar, by a bipolar. Private by design.