Google Calendar
Free. Sharable. Synced everywhere.
Free
Comes with any free Gmail account.
Add an event
Tap +. Type “Doctor Tuesday 10 AM.” Calendar fills it in.
Reminders
Set 1 day + 1 hour reminders. Phone alarms ring at both.
Share with family
Share calendar with kids — they help drive you to appointments.
Use voice
“Hey Google, add doctor appointment Friday at 2.”
Print weekly
Calendar.google.com → settings → print. Have a paper backup.
Quick Tip: Apple Calendar works the same way — they sync with each other.