Current week is a simple and easy to use app that shows the week number for the current week. You can also find out the current week number from a specific date. It is also an Apple Watch app available with a complication so you can se the current week number right from the watch face.
The app uses the current date on the device to get the current week number so it should work in all timezones.
Removed functionality to show week number on I can badge. It's hard to get it to refresh properly because of the limitations for background refresh on iOS.
Up to six family members will be able to use this app with Family Sharing enabled.