Personal CRM

Hi IH community!!
Long story short, few months ago moved from a Uruguay to australia, and having +14 hours difference with family and friends + distance makes it super hard to keep in touch with people on a daily bases. I tend to forget birthdays, send gifts or even talk to friends!

Do you know of any app for scheduling important dates? not only birthdays, but maybe anniversaries, births, and reminders like 'you haven't talked to John in 3 weeks!'??
Facebook isn't enough!. there must be something out there..

Let me know if you know or have any recommendation.
Otherwise if i build something like this, super simple, would you use it? would you pay for it?

Cheers!
Damian