Comparison
Paper diary or reminder app?
There is a strong case for paper. It never needs charging, never updates itself, and belongs to a lifetime of habit.
Short answer
A diary is excellent for appointments and for someone who still writes things down reliably. It cannot prompt at a time, and it cannot tell the family anything. A reminder service adds those two things without taking the diary away.
Where paper wins
- Familiar, private, and requires no learning.
- Excellent for appointments, birthdays and the week ahead.
- Writing something down is itself an aid to remembering it.
- No battery, no signal, no password.
Where paper runs out
A diary must be opened. If the habit of checking it each morning weakens, everything inside it becomes invisible, and the family only finds out when an appointment is missed.
It also lives in one house. Siblings coordinating from elsewhere have no view of it at all.
What a reminder service adds
Prompts that arrive at the right hour, delivered as a text or spoken message, plus a shared view for the family so everyone knows what is set and what was confirmed.
Crucially it does not require the older person to use an app at all — that side can be as simple as a message arriving on an ordinary phone.
Best of both
Keep the diary for appointments and the week's plan. Use scheduled prompts for the daily repeating things and for the morning-of nudge before an appointment.