Organizing my day, and having routines. Your recommendations ?

Hi, first of all, i'll precise that english isn't my first language, so my wording might be weird, i'm sorry for that.

I'm searching for an app that would help me organize my day, and help me keep daily routines. I've heard good things about the app "fabulous". but before paying for it, i would like to know if you think fabulous worth it, or if you recommand any other app.