A home for two

Your whole day,
shared ray by ray.

Sundial turns one shared note into something alive. Every line you write, time-stamped to the second, lands softly on each other's home screen. All day long.

Join the beta See how it works →
iOS 17+Sign in with ApplePrivate by design

Fast set up. Forever to use.

How it works

1

Sign in with Apple

One tap. No password, no email, just you.

2

Open a Beam

Get a six-letter code, send it to your person.

3

Share your day

Write your first ray to share warmth on their home screen.

On your screen, all day.

It looks like the
afternoon feels.

Sundial lives where you already look a hundred times a day. Tap the widget and the whole day unfolds, line by glowing line.

Two taps to your home screen.

Always one
glance away.

Long-press, tap the plus, and drop the Sundial widget wherever you like. From then on their latest rays glow right beside your apps, no opening anything, no notifications, just warmth where you already look.

The brief

Build the feeling of
passing notes in class,
for two people who grew up.

Sundial began with a simple ask: make distance feel smaller without adding more noise. No likes, no last-seen, no pressure to reply. Just a warm shared page that quietly fills with a day, and a sun on the home screen to remind you someone's thinking of you.

Designed & built for couples who'd rather share a sunset than a feed.

Small details, warmly engineered.

Everything a day between two people needs.

Time-stamped to the second

Every line marks the moment it happened, h:mm:ss, no taps required. Scroll back and feel the shape of a whole day.

A fresh page each day

At midnight your Day folds into your Solar System, a gentle archive of every day you've shared. Tomorrow opens clean.

Live on your home screen

A widget that glows with their latest rays. You feel them in your day without ever unlocking your phone.

One Beam, just the two of you

Pair once with a six-letter Beam code. From then on it's a private channel between two phones, and only two.

Private by design

Sign in with Apple, no passwords, no email harvested, no ads, nothing sold. Your words are yours.

Built to feel like golden hour

Warm light, soft type, a little sun on every screen. Sundial is designed to feel like the best part of the afternoon.

Sundial is in private beta.

Cut out the noise of modern communication. Join the TestFlight and start sharing your day, ray by ray.

Join the TestFlight Privacy policy

iPhone · iOS 17 or later