PenPal.

Family address book

One-time setup

Connect this app to your Supabase project. You only do this once — it’s remembered on this device.

Project URL — from Supabase, Settings → Data API Anon public key — Settings → API Keys → Legacy

Sign in

Manage the people your child can send mail to.

Email Password

New to PenPal? Create an account

Connected to:

Change connection

Name your family

This labels your address book — for example, “The Todd Family.”

Family name

Add the people your child can mail. The voice name is exactly what they’ll say to the PenPal — keep it short and natural, like “Grandma” or “Uncle Nick.”

Paste this token into the PenPal device config to link it to your family. Keep it private — it’s the key to your address book.

Return address

Printed as the sender on every postcard your child mails.

Sender name Street address Apt / unit (optional) City

State

ZIP

Photo to color

Upload a photo and your child can turn it into a coloring page on the device. A new photo replaces the last one.

Add a person

Voice name — what your child says Full name — printed on the postcard Street address Apt / unit (optional)

City

State

ZIP

Address book

No one here yet. Add a grandparent, cousin, or friend above — they’ll appear on the PenPal the next time it syncs.