Polar Balance is a free iOS app for logging your mood and building habits. Privately, offline-first, and on your terms. Built with bipolar disorder in mind — and adaptable for anxiety, depression, and beyond. No account required. No paywalls. Your data stays on your device by default. ✦ Mood logging: spot patterns over time ✦ Habit tracking: build streaks that stick ✦ Daily notes: reflect in your own words ✦ Offline-first: works without a connection Free, simple, and private by default.