Nyangi Studio USA
Journal
The day, captured. Open the app and the first thing you see is “What’s your cat up to?” — add a photo, a mood, a quick note. Everything flows into a diary grouped by day.
For iPhone
NekoDiary turns everyday cat life into a keepsake — a photo a day, the moods, the milestones, the naps in sunbeams. One moment a day, kept somewhere beautiful you’ll return to. Just your cat’s story.
Coming to the App Store · Sign in with Apple or email · Made by Nyangi Studio USA
A baby book meets a beautiful journal — for cats. Everything in NekoDiary is one timeline: how you write it, how you read it, how you celebrate it.
Three simple tabs
No dashboards, no charts, nothing to keep up with. Just a gentle place for your cat’s life.
The day, captured. Open the app and the first thing you see is “What’s your cat up to?” — add a photo, a mood, a quick note. Everything flows into a diary grouped by day.
A life timeline that scrolls from your cat’s very first day to now. Monthly recaps surface the best photos and milestones — and turn into shareable keepsake cards.
Each cat’s keepsake page — and your source of truth. Birthday and gotcha day, breed and weight, vet and sitter details, and a safe spot for medical records, all in one place.
The story keeps growing
We’re building NekoDiary in the open. Here’s a peek at what’s coming after launch — always for cats.
Why people love it
Every screen is made to feel like a keepsake, not an app — warm, calm, and worth opening. The kind of place your cat’s story deserves to live.
Your journal is private and never sold. Export everything — entries, photos, and documents — whenever you like. Delete your account in a tap and it’s gone.
No health scores, no anomaly alerts, no guilt. NekoDiary records the moments and remembers them beautifully — it never tries to diagnose your cat.
Cat-first, black-cat-loved, down to every word. Built by the same little studio behind Nyangi Studio USA, with the same affection for the little panthers.
From the studio
Capture the little moments — a photo a day, the vet visits, the birthdays, the naps in sunbeams. NekoDiary turns everyday cat life into a keepsake you’ll treasure. Just your cat’s story.
NekoDiary is published by Nyangi Studio USA, our family studio’s little shop for black-cat people. It’s a journal and keepsake tool — not a health or veterinary product — built with the same love for cats that goes into everything we make.
A keepsake journal for your cat — one moment a day. Follow along for the launch.