Simple calendar plugin for users birthdays reminders

Please help with finding a simple calendar plugin for users birthdays reminders. It should allow me to simply save the birthdays of users (subscribers), display congratulations in the widget and, ideally, send a corresponding reminder to the site administrator by mail.

I have already looked through more than 10 plugins, but their capabilities are very redundant, because they are intended for large sites and eCommerce. Once there were simple plugins for such things, but unfortunately they are not compatible with current versions of WordPress and have not been supported for a long time.

• This topic was modified 3 years, 9 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Everything else WordPress topic