The WaitingList app is a simple concept that helps users wait.
Currently in beta, the Russian startup has a 'Counters' feature that provides you with a reverse timer countdown to the event, while also offering increasing information and details the closer you get. Notifications remind you the event is coming up and a large and varied collection of beautiful skins gives you a method of personalization.
From the new season of your favorite television show to video game releases to astronomical occurrences, you can keep track of a wide array of upcoming events. This would also work for personal milestones. Compatible with macOS, the WaitingList app makes it easy to edit and add new countdowns too.