Please recommend a schedule management program

I use Android for my cell phone.

PC uses Windows 10 and has a laptop & nbsp; MacBook Air.

I also have an iPad.

If you have multiple devices like this, is there a program that automatically links   when you record your calendar?

I'm doing it on my phone now, but there are many times when I'm a little disappointed.

1100 2017-06-30 Gentleman

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