How can you best use your phone as a notebook for to-dos?

Personally I use an app called Planner Pro. I love it. I use it on my iPad to plan and use my phone to keep me on track. If you don’t want to use additional apps use the reminder function with alarms and Siri

Sorry but I hate using my phone for to-dos! Very clunky and then I can never find them! But in a pinch I will use calendar, or the notes function. A written list gives me far greater satisfaction than online.

Actually i have an app for to do list am using it to keep track of my big goals & reminders set to be shared on my calender moreover notifications by deadlines will be shown at the exact time to keep doing tasks .

But daily task list is done manually by me without any technology