Wunderlist was both full of useful features and whimsical in a way few apps manage. Then, long story short, Microsoft bought it in 2015, morphed it into Microsoft To Do (a very good and much less delightful tasks app), and killed Wunderlist forever. But a group of the folks who made Wunderlist in the first place, led by co-founder Christian Reber, set out to bring its spirit back to life.
https://www.theverge.com/2024/2/13/24071136/superlist-tasks-app-wunderlist-productivity-tool