Your Apple Calendar, intelligently organized.
Horizon adds intelligence to the calendar you already use. It automatically organizes events, surfaces what matters, and helps you make time for what counts.
Everything your calendar should do
Horizon brings intelligence to your existing calendar, with no new app to learn, no data to migrate, and no habits to change.
Smart Categories
Automatically classifies events into 19 categories like Health, Work, Family, Travel, Social, and Finance. Every event gets a category, color, and context. You can customize everything.
Daily & Weekly Briefings
Start each day with a clear overview of your timeline, weather, next event spotlight, time breakdown, and open slots. Weekly briefings highlight your busiest days, category distribution, and conflicts.
Find Free Time
Finds available openings in your schedule based on your preferences. Quickly schedule new events from open slots without switching between apps.
Duplicate Cleanup
Detects duplicate events across your calendars and helps you merge them to keep your schedule clean and accurate.
Quick Categorize
Triage uncategorized events fast with smart suggestions. Horizon learns your preferences and gets better over time.
Widgets That Work
Home Screen and Lock Screen widgets for your next event, daily briefing, and weekly glance. They stay up to date and easy to read at a glance.
Smart Notifications
Context-aware reminders that adjust based on event category. Set different notification timing for work meetings, social events, and health appointments.
See Horizon in action
A smarter way to view, organize, and understand your schedule on iPhone and iPad.
Every screen, from list to widgets.
List view
Built for Privacy
Your calendar is personal. Horizon is designed so your data never leaves your device.
On-device intelligence
All classification and analysis runs entirely on your iPhone.
Data stays on your device
Calendar data never leaves your iPhone. Period.
No servers
Horizon has no backend servers and makes no network requests with your data.
No tracking
No analytics, no telemetry, no usage tracking of any kind.
No accounts
No sign-up, no sign-in, no personal information collected.
Designed for Apple Calendar
Horizon works on top of the calendars you already use. No new calendar to maintain and nothing to migrate.
Purpose-built for Apple Calendar
Horizon is designed exclusively for Apple Calendar users, not a generic calendar app trying to do everything.
Works with your existing calendars
Supports iCloud, Exchange, and CalDAV calendars synced through Apple Calendar. No migration needed.
Deep integration
Reads your calendar data directly through Apple's frameworks for fast, reliable access.
Zero setup
Just grant calendar access and Horizon handles the rest. No accounts, no configuration, no syncing delays.
Take control of your time.
Download Horizon and experience your Apple Calendar like never before. Stay organized, intelligent, and private.
