What's New — v1.5.5

Widgets, redesigned
  • Countdown widgets feature a new winding-path visual that shows your journey toward what's next, now in a Large size that displays up to 5 tracked events at once.
  • Pick exactly which tracked event to feature in your Countdown widget, or let Horizon automatically feature the closest upcoming one.
  • Event widgets can now be filtered by category, and your choice sticks even if you rename the category later.
  • Refreshed typography, spacing, and color across every widget for a cleaner, more consistent look.
  • The Daily Briefing widget shows colored category icons in its summary so you can read the day at a glance.
  • Long event titles now scale gracefully at larger text sizes.
  • Briefing widgets refresh their weather automatically whenever you reopen Horizon.

Apple Watch
  • Complications now carry your category color on every face style.
  • Fixed rendering of the large rectangular complication.

Sync & reliability
  • Horizon now detects when you switch iCloud accounts and walks you through a clean restart so your data stays separated.
  • Faster sync between your iPhone and iPad for pinned events and manual category corrections.
  • Smarter background updates and improved sync stability throughout.

Fixes & polish
  • Numerous stability and design-consistency improvements.

Bug Fixes:
- 1.5.3 had a sync issue that could leave iCloud data duplicated across devices. 1.5.4 fixes the underlying race and automatically cleans up any duplicates on next launch. If iCloud still seems stuck after updating, open Settings → iCloud & Sync → Re-download from iCloud for a faster recovery.

What's New in v1.5.3

Smarter Notifications
  Horizon no longer duplicates your calendar app's reminders. Event notifications are now off by default for new users. You can still enable per-category
  reminders anytime in Settings > Notifications.

Countdown Milestones for Watched Events
  Track events that matter most and get milestone updates as they approach. Horizon sends countdown notifications at various milestones, and a morning-of reminder. Toggle milestones on or off in Settings or during onboarding.

Refreshed Onboarding
  A streamlined setup experience highlights Watched Events, lets you know you can create custom categories, and puts notification controls front and center.

Horizon v1.5.2 Release Notes

  Watchlist

  - Journey progress trail -- Watched event cards now show a winding path that visualizes how far along you are from when you started watching to the event date, with milestone
  markers at 25%, 50%, and 75%. The traveler dot glows with increasing intensity as the event approaches.
  - Redesigned empty state -- The Watchlist empty state is cleaner with a decorative animated trail and simplified messaging.

  Calendar Hints

  - Direct Mapping mode -- Calendar Hints now supports two modes. Hint (the default) influences categorization while still allowing AI to make the final call. Direct bypasses AI
  entirely and always assigns the chosen category at full confidence. Both modes are available from a new mode picker in the calendar hint sheet.
  - Recategorization on change -- When you change a calendar's hint or mapping, Horizon now asks whether to recategorize existing events from that calendar. Only affected events
  are processed, and manually categorized events are always preserved.

  General

  - Consistent terminology -- "Categorize" and "recurring" are now used consistently throughout the app, replacing the previous mix of "classify" and "repeating."
  - Accessibility improvements -- Animations throughout the app now respect the Reduce Motion accessibility setting. Confidence badges and countdown timers include VoiceOver
  labels.
  - Design consistency -- Spacing, navigation titles, and confirmation dialogs have been standardized across all settings pages.

  Bug Fixes

  - Fixed frozen countdown badges -- Time-relative badges (e.g., "in 5 hours", "3 days ago") were computed once and never refreshed, so they would display stale values until the
  view was fully reloaded. They now update every 60 seconds.
  - Fixed locale mismatch in timeline grid -- The midnight hour label was hardcoded as "12 AM" instead of using the system formatter, causing a format mismatch for users in
  24-hour locales.

What's New in v1.5.1

Onboarding:
- New reassurance banner on the calendar selection step clarifying that Horizon only reads your calendars and never creates, edits, moves, or deletes events without your direct action.

Calendar selection (onboarding and Settings > Calendars):
- Calendars within each account are now sorted alphabetically.
- Added per-account Select All / Deselect All for quick bulk toggling when you have many calendars in one account.

Event detail - Classification section:
- The "Looks good" confirmation (previously "Looks right") no longer pops up a series scope dialog for recurring events. One tap now dismisses the review row, teaches Horizon that the current category is correct, and leaves the original source label (AI classifier, Apple Intelligence, etc.) intact instead of overwriting it with "You set this".
- Simplified the classification info display so technical identifiers no longer leak into the UI.
- Added mlModelRenormalized to the friendly-label mapping so it renders as "AI classifier" instead of falling back to "Auto-classified".

Whats New:

- Support for iOS 18. This version works the same as the iOS26 version without the foundational model capabilities the iOS 26 introduces.

NEW FEATURES

  - Watchlist: Track your most anticipated events with live countdown timers that tick in real time, urgency-based visual effects, and milestone celebrations when the moment
  arrives
  - Countdown widgets: Add Watchlist countdowns to your Home Screen and Lock Screen in small, medium, circular, and rectangular sizes
  - Life Patterns: Explore a heatmap view of your schedule that reveals event density trends and category patterns over time, with daily detail breakdowns and insights
  - Calendar tagging: Assign a default category to any calendar so events are automatically sorted the way you expect
  - Quick confirm: Tap "Looks right" or "Change" directly on event details when Horizon is unsure about a category, without opening the full edit screen
  - iCloud Sync settings: New dedicated settings screen to manage iCloud sync, view sync status, and troubleshoot multi-device issues

  IMPROVEMENTS

  - Smarter event classification with a new multi-stage pipeline that combines keyword matching, on-device machine learning, and semantic understanding for more accurate
  categories
  - Weather forecasts now appear on more event types and show enhanced details including precipitation and wind
  - Participant acceptance status (accepted, declined, tentative) now displays on event cards, detail views, briefings, and widgets
  - Widgets now show category color stripes and improved spacing for better readability across all sizes
  - Onboarding now shows real-time progress as your events are being classified for the first time
  - Improved location detection with richer map previews in event details
  - Event detail view reorganized into clearer information cards for easier scanning

  BUG FIXES

  - Fixed keyword-based recategorization not applying correctly in some cases
  - Fixed various widget layout issues on smaller screen sizes
  - Fixed sync reliability issues with iCloud category and override data
  - General stability improvements and performance optimizations

NOTE: Users upgrading from a previous version may notice some reclassification of events as the system adjusts to the new categorization pipeline.

What's New in Horizon 1.2

  Life Patterns — A brand new way to reflect on your time. See how busy your weeks have been, track consistency across categories, and discover trends in how you spend your days.

  Redesigned iPad Layout — A cleaner, more unified experience on iPad that makes navigating your calendar intelligence feel seamless.

  Improved iPhone Landscape — Better use of screen space when you rotate your iPhone sideways.

  Smarter Event Classification — Our on-device AI is now even more accurate at understanding what your events are about, so categories land right the first time.

  Better Map Locations — Events at named places (restaurants, venues, parks) now show up more accurately on the map.

  Bug Fixes — Fixed an issue where adding new keywords wouldn't update events that were already categorized.