ChromaCal ChromaCal
See your year in color.
ChromaCal turns your calendar into a vivid heatmap. Color-code your days by event type — workouts, reading, rest, deep work — and watch the rhythm of your life emerge, one square at a time.
Available on iPhone and iPad · iOS 17+ · No subscription, ever
A calendar designed to be looked at.
Most calendars are lists of obligations. ChromaCal is a portrait of how you actually spend your time.
Heatmap Calendar
Each day cell fills with the colors of the event types that happened that day. Glance at a month — or a year — and see your patterns at once.
Color-Coded Event Types
Define your own categories — Workout, Reading, Sleep, Deep Work, Family — and assign each a color. Tag events as you go and watch your week paint itself.
Year View
Zoom out to twelve months on a single screen, then scroll back through earlier years. Spot streaks, gaps, and seasonal rhythms in seconds.
Stats & Streaks
See how often you actually do the things you say matter. Per-type frequencies, longest streaks, and current runs — calculated automatically as you log.
Four Color Palettes
Vivid, Earthy, Pastel, and Sunset — choose the mood that fits your year. Light and dark appearance modes built in, no fiddling required.
Home Screen Widget
Pin your current month — in full color — to your Home Screen in small or medium size. The patterns of your life, visible every time you unlock your phone.
iCloud Sync
Your calendar follows you. ChromaCal syncs seamlessly across iPhone and iPad through Apple's iCloud — private, end-to-end, and powered by your own Apple ID.
CSV & JSON Export
Your data is yours. Export your full calendar to a portable CSV or JSON file at any time, and restore from JSON on a new device. No lock-in. No surprises.
Built privacy-first.
ChromaCal stores your calendar locally on your device with optional iCloud sync through your own Apple ID. No third-party analytics. No advertising. No tracking. No data brokers. Your year belongs to you.
Read our Privacy Policy →Pay once. Yours forever.
No subscriptions. No trials. No renewals. One small payment unlocks every feature, forever — including future updates.
Year-in-color view · Stats & streaks · Widget · CSV/JSON export · Expanded palette
One-time purchase. No auto-renewal. Restore Purchase available on every device you sign in with the same Apple ID. Payment is processed by Apple — we never see your billing information.