Have your most beautiful week ever

Finally, a week companion that respects both aesthetics and technical needs.
From ISO weeks to custom week patterns with 9-day cycles.
The perfect week tracker app you didn't know you needed.

Beautiful week widgets for iPhone and iPad

Minimal, colorful, detailed — always in your theme. From calendar week numbers to week progress gauges, CWN puts time right on your Home & Lock Screen.

Define your week with a custom setup

From ISO 8601 weeks to fiscal year calendars and even 9-day cycles or sprints — CWN adapts to your rhythm.

🤖 Bot - Strict ISO Mode

Pure ISO 8601:2019 standards
Monday week start (locked)
Week 1 requires 4+ days in the year
All settings locked to specification

📱 User - System Defaults

Uses your device's regional settings
Automatic week numbering
Follows iOS region settings
Zero configuration needed

⭐ Apprentice - Basic Setup

Choose your week start day
Custom week and day labels
Personalize week display names
Regional week numbering still applies

⚡️ Knight - Advanced Settings

Fiscal year support
ISO or US week numbering choice
Custom year boundaries
Year advances immediately or mid-year
Week 1 definition control

🔥 Master - Complete Control

Custom week lengths (2-14 days)
Year anchor date control
Hard or soft year starts
Define minimum days in first week
Complete control over time calculation

Into your calendar.

Jump straight into your calendar app with one tap. See all your events with week context. Plan ahead with week numbers visible. The perfect calendar navigation for iOS.

Currently supports: Apple Calendar, Google Calendar, Timepage, Fantastical, BusyCal

Your weeks, everywhere.

Download Calendar Week Nerd today and make your weeks visible — from ISO weeks to custom cycles, from week widgets to Apple Watch complications.