MacPipにはMac向け「タスクとカレンダー」カテゴリのアプリが5件掲載されていて、そのうち2件は人が確認しました。そのうち2件に無料版があります。そのうち4件は買い切りライセンスを販売しています。そのうち1件はサブスクリプション制です。There is no single best task or calendar app for everyone, so MacPip does not rank them.無料がいいなら、Seedloreから始めてください。
開発者より: Seedlore turns your time together into a tree that grows with your relationship, from a tiny seed to a big old tree that feels your real weather. Count every day together and never miss an anniversary.
From its maker: Nexty is a focused workspace for macOS that brings tasks, a timer and focus together in one app. It helps you plan your day,はthe right task and stay with it until it is doneからです。
Look for which calendars and reminders it syncs with, whether it works offline, and how you get your tasks out again.
質問
What is the best task or calendar app for Mac?
There is no single best one for everyone. MacPip lists 5: Seedlore, Nexty, Weavr, Cupola, LokalBot. If you want it free, look at Seedlore. If you would rather pay once than subscribe, look at Nexty. If you want it to run natively on Apple silicon, look at Seedlore. If you need it to work offline, as its maker says it does, look at Seedlore.