---
title: "Week Numbers - Calendar Weeks — App Overview"
url: https://marlvel.ai/apps/week-numbers-calendar-weeks
category: Productivity
developer: Emoji Apps GmbH
platforms: ios, android
rating: 4.9 (261 ratings)
pricing: free
report_level: overview
generated: 2026-04-19
last_verified: "2026-04-19T02:16:10.502Z"
overall_rating: 4.9
total_reviews: 261
data_age_days: 165
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This app provides a seamless, native-feeling solution for displaying calendar week numbers without requiring a separate calendar application.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Productivity |
| Rating | 4.9 ★ (261) |
| Pricing | free |
| Platforms | iOS, Android |
| Latest Version (iOS) | 1.6 |
| Latest Version (Android) | 2.2.2 |
| Developer | Emoji Apps GmbH |

<!-- SECTION: Summary -->
## What is Week Numbers - Calendar Weeks?

Week Numbers - Calendar Weeks is a productivity utility that integrates calendar week numbers directly into the native iOS calendar. It eliminates the need for secondary calendar apps by syncing week data across iCloud, MS Exchange, and desktop platforms.

<!-- SECTION: Key Features -->
## Key Features

- **Native Calendar Integration**: Adds week numbers as events directly into the standard iPhone or iPad calendar.
- **Customizable Display**: Allows users to select specific days of the week to display numbers or show them on every day.
- **Flexible Week Schemas**: Supports both ISO 8601 (Monday start) and US/International (Sunday start) week numbering standards.
- **Cross-Platform Sync**: Ensures week numbers are synced across iCloud, MS Exchange, and connected Mac or PC calendars.

<!-- SECTION: Target Audience -->
## Who is it for?

Professionals and individuals who require visibility of ISO or regional calendar week numbers within their primary scheduling tool.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/week-numbers-calendar-weeks/id402559382?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=com.thedrycake.weeknumber&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/apps/week-numbers-calendar-weeks)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/week-numbers-calendar-weeks).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*