Tending: Cycle Tracker

Tending is a calm, private home for the rhythms worth keeping an eye on: your menstrual cycle, your water, and your movement. No account, no cloud, no tracking — everything stays on your device.

MENSTRUAL CYCLE & MOON
- Log period start and end dates in seconds, and backlog past cycles too.
- Adaptive predictions learn from your history — the more you log, the sharper your next-period, ovulation, and fertile-window estimates become.
- A day-by-day phase ring shows exactly where you are in your cycle.
- Swipe to a moon view that tracks the lunar phase alongside your cycle.
- A full-year calendar map and a cycle-vs-moon chart reveal your patterns over time.
- An optional, gentle reminder before your next predicted period.

WATER
- Track every sip against a daily goal with a playful animated tumbler.
- One-tap quick-add buttons you can customize.
- Hydration streaks and pace-aware reminders that nudge you only when you fall behind.
- Optional, write-only sync to Apple Health.
- A Home Screen and Lock Screen widget with one-tap logging.

MOVEMENT
- A simple daily yes/no workout streak with a weekly goal.
- A 16-week heatmap so you can see your consistency at a glance.

PRIVACY FIRST
- All your data is stored only on your device. There is no Tending account and no server.
- No analytics, no ads, no third-party tracking.
- Lock the app behind Face ID, Touch ID, or your passcode.
- Your cycle data never leaves the app. The only optional sharing is water to Apple Health — off by default and write-only.

Tending is built to be quiet, warm, and yours.