Invite-only beta, now live in Japan

See how your body responds to everyday meals.

Bring meal photos, glucose readings and the context of your day together. maru turns your records into thoughtful reports, helping you choose one small thing to explore next.

Currently available by invitation in Japan. The app is in Japanese. Sign up for updates on English availability.

Watercolor illustration of a middle-aged couple enjoying a gentle walk beside a lake.
An easy walk togetherIllustration. Not a screenshot.

What maru does

Watercolor illustration of a woman photographing a neatly plated lunch with her phone.
Illustration. Not a screenshot.

Snap

Take a photo of your meal. AI reads it in seconds.

Watercolor illustration of a man checking his phone, with a small white sensor on his upper arm.
Illustration. Not a screenshot.

Connect

Your CGM and Apple Health data come in automatically.

Watercolor illustration of a woman reading on her phone beside a sunny window.
Illustration. Not a screenshot.

Understand

Each morning, a short recap of yesterday arrives. When a sensor period ends, you get a summary of that whole stretch.