The name day tracker consists of a widget that shows the names that have name days Today, a service that displays notifications for all contacts when they have name days or birthdays and a simple app that shows all the name days for a year.
At present the app supports only Swedish name days. Other nationalities may be added later if there is enough interest, this is a free app and Swedish is good enough for me.
NamedayTracker requires access to contacts in order to see if anyone has name day or birthday Today. No other permissions are required, making this a safe install.