Midnight to midnight.

Every day becomes a seal of its own.
Our logo is one of those days.

Tap your watch.
Write your day
into a book.

Hinokoe records your day on Apple Watch, transcribes it on your iPhone, and AI turns it into a page of your book.

Your audio is never uploaded to our servers

Hinokoe’s Today dial: a 24-hour bezel with the day’s sound growing as fine lines, and the sample date Wednesday, October 14 in the middle
A sample day · The hand shows your local time
  1. 07:42Heading out
  2. 10:15Weekly meeting
  3. 12:30Lunch with Kenji
  4. 15:05Client call
  5. 19:20Evening walk
  6. 21:00Calling Mom

One day,
one page.
One year,
one volume.

  1. Opening: a point of light sets off at midnight and travels clockwise through the day, leaving fine lines where there was talking and small stars at a few moments, drawing today’s dial.
  2. As you scroll, the dial’s ticks drift apart one by one and become stars.
  3. The dial shrinks into a day seal at the center of a book cover, with a year of seals around it like a sky full of stars.
  4. The book opens and turns through the last five days, stopping at today.
A morning desk with coffee and a hand wearing Apple Watch showing the recording face (AI-generated scene; the screen shows our planned interface) A hand on a door handle on the way out, Apple Watch recording on the wrist (AI-generated scene) Taking a call by window blinds, Apple Watch recording on the wrist (AI-generated scene) An evening tram ride, a hand on the rail wearing Apple Watch (AI-generated scene) Apple Watch taken off on a nightstand, its screen showing today’s closed seal (AI-generated scene)

A day

A day15:05A call

Interrupted?
It carries on.

When a call interrupts, recording resumes after you hang up. If it can’t, your watch taps you. One tap resumes.

Turn the bezel to pick a moment

Your local time

The book

One day, one page.
One year,
one volume.

At day’s end the dial stops and shrinks into a day seal, stamped in the corner of the page. The more you talked, the thicker the ring; the dot marks when your day ended. A year of seals becomes the cover of that volume.

  1. Today on iPhone: the 24-hour dial and the day’s chapters

    Today

    The dial keeps moving as sound grows around it

  2. A closed page on iPhone: the seal in the corner and each chapter’s words below

    Closing · 1.2 s

    The dial becomes a seal in the page corner

  3. The shelf on iPhone: Volume 1, 2026, with a year of seals in a grid

    Shelf

    A year of seals makes the cover

A door left ajar in a dark hallway, warm light spilling through (AI-generated scene)

Privacy

It stops
when it should.

  • Transcribed on your iPhone

    Your iPhone turns speech into text. Your audio is never uploaded to our servers.

  • Cloud AI gets text only, with names replaced

    When you use cloud AI, names, phone numbers and similar details are replaced with placeholders on your iPhone first. Our servers don’t keep it, and the AI provider keeps it for up to 30 days.

  • The people around you have a say

    They can see you’re recording, ask you to pause, or ask you to delete what was just said.

Whether recording is legal depends on where you are. Learn your local law and tell the people around you. The app gives prompts for your region, but this isn’t legal advice.

FAQ

You might be wondering

Do I need my iPhone with me all day?

No. Your watch records on its own and sends audio over for transcription when you’re back near your iPhone.

Will the battery last a day?

We’re measuring battery life on real devices during the beta and will share the numbers once we have them. You can pause anytime, and recording stops and saves when the battery runs low.

Is it legal to record other people?

It depends on where you are. Many places require you to tell the people around you, and some require everyone’s consent. The app gives region-specific guidance, but follow your local law and let people know.

Where is my audio stored?

On your iPhone, and it’s never uploaded to our servers. You can also choose to back it up, encrypted, to your own iCloud.

What does cloud AI send?

Only text, never audio, heart rate or precise location. Before it’s sent, names, phone numbers and similar details are replaced with placeholders on your iPhone. Our relay passes it on without keeping it, and the AI provider doesn’t train on it and keeps it for up to 30 days for safety review.

How do I join the beta?

Join the waitlist and tap the button in the confirmation email. When the beta opens, we’ll send invitations in batches through TestFlight. You’ll need Apple Watch paired with iPhone: iPhone needs iOS 26 or later, and Apple Watch needs watchOS 26 or later.

When will it launch, and how much will it cost?

We’re not there yet. We’ll post the launch date and pricing here once they’re set, and email everyone on the waitlist.

A row of old cloth-bound books on a wooden shelf (AI-generated scene)

Start today.
Write your
first page.

One tap on your watch and it starts recording. When the beta opens, we’ll invite people from the waitlist in batches.