Calendar Week Nerd

Balthasar Siekiera Utilities iPhoneiPadiPod touchApple Watch

Calendar Week Nerd is a free Utilities app for iPhone and iPad by Balthasar Siekiera. Rated 5.0/5 from 1 ratings. Requires iOS 18.4. Updated July 4, 2026.

Rating: 5.0; 1 ratings
Price: Free; on the App Store
Size: 161 MB; Age 4+
Updated: Jul 4; 2026 · v2026.3

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Screenshots

About Calendar Week Nerd

Have your most beautiful week ever. Calendar Week Nerd is the ultimate week companion that respects both aesthetics and technical needs. Whether you just want minimal, colorful week widgets or need full custom week setup with ISO, fiscal years, and 9-day cycles, CWN adapts to you. Features: Beautiful Widgets: Home screen, lock screen, and interactive widgets in all sizes. Custom Week Setup: Choose your start day, fiscal year, week numbering, even 9-day sprints with custom week lengths. Apple Watch App + Complications: See week numbers and progress right on your wrist. Calendar Navigation: Tap any week and jump directly into your calendar app. Week & Year Arcs: Track where you are in the year at a glance. Calendar Week Nerd The perfect week system you didn't know you needed. Privacy Policy: https://calendarweeknerd.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

What’s new

Version 2026.3 · Updated July 4, 2026

The first half of 2026 is over and widgets are now paid again. If you downloaded the app prior to this release the widgets stay unlocked for you. Thank you for your support.

App privacy

The developer, Balthasar Siekiera, reported these privacy practices to Apple.

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

Usage Data: Product Interaction
Diagnostics: Crash Data, Performance Data, Other Diagnostic Data

Used for: Analytics, App Functionality

App details

Calendar Week Nerd is a free Utilities app for iPhone, iPad, iPod touch and Apple Watch, developed by Balthasar Siekiera. It is rated 5.0 out of 5 from 1 ratings on the App Store, requires iOS 18.4 or later, is 161 MB to download and is available in 3 languages. It was first released on September 26, 2025 and last updated on July 4, 2026.

Category: Utilities
Rating: 5.0 / 5 (1 rating)
Price: Free
Version: 2026.3
Size: 161 MB
Requires: iOS 18.4 or later
Compatibility: iPhone, iPad, iPod touch, Apple Watch
Languages: English, German, Swedish
Age rating: 4+
Released: September 26, 2025
Last updated: July 4, 2026
Developer: Balthasar Siekiera

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Alternatives to Calendar Week Nerd

Looking for apps like Calendar Week Nerd? Here are 6 similar apps on the App Store. The highest rated is Calendarweek Widget (4.0/5), and 4 of the 6 are free to download.

Calendar Week Nerd vs. alternatives
App	Rating	Price	Last updated	Compare
Calendar Week Nerd	5.0 / 5 (1 rating)	Free	July 4, 2026
Calendarweek Widget	4.0 / 5 (2)	Free	Dec 17, 2025	Compare
Weeklet – Week Number	–	Free	Oct 16, 2026	Compare
Week Watch	1.0 / 5 (1)	0.99 USD	Sep 1, 2024	Compare
Date601	1.0 / 5 (1)	0.99 USD	Sep 14, 2026	Compare
Week Number · Calendar Weeks	–	Free	Jul 22, 2026	Compare
Current Week	3.0 / 5 (2)	Free	Jul 11, 2024	Compare

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