“School pickup, Mom’s meds, the field-trip form…”
The assistant only App4Dad lets you keep private.
A caregiver’s whole week — appointments, email, family logistics — held in one place that only you can read. Private, AI-powered help, built zero-knowledge from the ground up.
Join the waitlist Sign inBuilt so only you can read it
App4 encrypts your data with a key only you hold. Everything below happens without handing your private life to anyone.
Zero-knowledge
Your data is encrypted on your device. Our servers hold only ciphertext they cannot decrypt.
Email & calendar, handled
Connect Gmail and Google Calendar; The Liaison surfaces what actually needs your attention.
Family, in sync
Share only what you choose with the people you choose — the rest stays yours alone.
How it works
Three steps, all on your terms.
Connect
Link your email and calendar. Access is on-device and read-only unless you approve a change.
The Liaison helps
It summarizes and organizes your logistics — never advice, always in your control.
Share what you choose
Bring in family members for exactly the things you want them to see — nothing more.
Questions
Is my data really private?
Yes. App4 is zero-knowledge: your data is encrypted with a key only you hold, so no one else — including us — can read it.
What can App4 connect to?
Your email and Google Calendar, used on your device to surface time-sensitive family logistics. You choose what to connect and can disconnect anytime. See our Privacy Policy for exactly what each connection accesses.
Does App4 give medical or legal advice?
No. App4 provides logistical and informational support only — it is not a doctor, financial advisor, or lawyer. In an emergency, contact your local emergency services.