Basic calendar/organiser apps for Active

[AC Question]

I am soon to start using my S4 Active now, the thing i will miss the most from my Nokia 6300 (dumb-phone, hehe) is the calendar/organiser function. I simply can't find any matching this calendar, it is very easy with the settings where i can set the notes as meeting, call, birthday, memo or reminder. I have tried various apps but they have all let me down and looks like a mess, so i ask you if you know of any easy ones to use.

Thanks in advance!

Regards,
Lars from Norway.