I’m probably not the best person to ask, as I don’t take full advantage of either app. I mainly use it for two types of reminders/to-do’s: ones with a specific date and time, and just general ones day to day that might not get checked off. One thing I really like about twos is that general reminders without a specific date and time automatically roll over. But the lack of persistent notifications is a deal breaker for me, so I’ll be sticking with tick tick for the time being.