# にゃんログ - 猫の気持ち日記 — 愛猫の今日のきもち、AIが翻訳。家族で記録する日記

> AI-powered cat mood diary and photo journal for families. (iPhone/iPad app by Masaki Sawada.)

- Source: https://appshunter.io/ios/app/id6771293181 (this page in markdown: same URL + `.md`)
- Developer: [Masaki Sawada](https://appshunter.io/developer/1896777128)
- Category: Lifestyle, Photo & Video
- Price: Free
- Rating: 4.25/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 77 MB
- Languages: American English, Japanese
- Released: 2026-05-21
- Data updated: 2026-10-10
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/id6771293181/reviews.md

## What is にゃんログ?

Wondering how your cat feels right now?
Nyanlog is here for that quiet question.
And now there is more to enjoy in watching over cats you care about.

■ What you can do

[AI reads your cat's mood]
From a single photo, the AI looks at the tail, whiskers, expression and posture, and puts the current mood into words.
"Sleepy," "wants a cuddle," "in a good mood" — things you might not have noticed on your own.
It compares with your past records, so you notice changes like "more than usual." You can edit the words afterwards.

[Choose how your cat talks]
Pick one of five voices for the line the AI writes.
Normal / Cuddly / Aloof / Royal / Neighborly.
The same photo turns into a line that sounds more like your cat. Once you pick one, it is remembered for that cat.
Switching voices never uses up your AI checks, so try as many as you like.

[Watch over cats]
Follow public cats you care about.
Find a cat, add it to your watch list, and keep up with new posts and the moods the AI read.
Send Cute, Watching or Healed on the moments you love — right from the list, with one tap.
When someone reacts to your cat, you get a notification.
You can start with watching even if you do not have a cat. Publish your own cat, and other cat lovers can watch over them too.

[Send it straight away]
Send a favourite photo straight to LINE or any messaging app.
For the ones that are not quite for social media, but you still want someone close to see.

[Memories resurface]
A quiet reminder in the evening of "one year ago today" and "one month ago today."
A photo you took and forgot about comes back to you.

[Monthly Nyan Report] (Pro)
From a month of records, the app puts together the mood that came up most, your most used tags, and a favourite photo.
"What kind of month did my cat have?" — in photos and words.
It keeps updating through the month and is finished at month end. Save it as an image, or share it.

[A one-minute diary]
Capture the moment as it is, with text and stickers.
A timeline in order, so three months later you can look back at "my cat, that day."

[Clean up photos with AI] (Pro)
Brush over clutter that ended up in the shot, and the AI removes it naturally.
What is left is just your cat.

[Monthly calendar]
A small dot on every day with a record. "Did I play with them enough last month?" at a glance.

[Birthday reminder]
A gentle notification on your cat's birthday, to look back on the year together.

[Share with family]
Keep the same cat's records together with your partner, your children, or family back home. Everyone can see who fed them and when.

[Cat trivia]
A new piece of cat trivia every day, to know your cat a little better.

■ Who it is for

People living with a cat for the first time
People who want to keep the small everyday moments
Families who want to watch a cat grow up together
People who want to notice changes in their cat early
People who want to watch over cats and connect with other cat lovers
People who do not live with a cat yet, but love cats

■ Pro (¥600/month or ¥4,800/year)
Everything essential is free. Pro adds:

Monthly Nyan Report — your month, summarised automatically, to keep and share
Share records with up to 6 family members (2 on Free)
24 AI mood checks per day (2 per day on Free)
Remove unwanted objects from 10 photos per month (not available on Free)
Register as many cats as you like (2 on Free)
The yearly plan is 33% cheaper than monthly (about ¥400 a month)

[Terms]

You can cancel anytime in the app
Monthly and yearly plans renew automatically unless cancelled at least 24 hours before the period ends
To cancel: Settings > Apple ID > Subscriptions on your iPhone

Terms of Use (EULA): https://nyanlog.jp/terms
Privacy Policy: https://nyanlog.jp/privacy

## Key features

- AI cat mood interpretation from photos
- Customizable cat voice selection
- Follow and interact with public cats
- Photo sharing to messaging apps
- Daily memory resurfacing
- Pro features: Monthly Nyan Report, AI photo cleanup
- Family sharing of cat records

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/id6771293181/reviews.md

### 5/5 — ありがたい😍

*2026-09-14*

ちゃんと、猫の気持ちが
分かるし、日記みたいに、
出来て、めっちゃ可愛い🩷
また、自分の猫を、投稿
出来て、嬉しいし他の猫も
見えて、便利だと思う‼️

**Developer response:** うれしい言葉をありがとうございます。「日記みたいに残せる」ところを気に入っていただけて、作ったかいがありました。他の猫が見られる見守りも、公開してくれる子が増えるよう育てていきます。これからもよろしくお願いします。

### 5/5 — 言葉で教えてくれる

*2026-06-17*

ちゃんと分析して言葉で猫の気持ちや状態を教えてくれて嬉しい😊

**Developer response:** ありがとうございます。返信が遅くなりました。
気持ちを「言葉にする」ことを大事に作っているので、そこが伝わって何よりです。
その後、AIが猫の一人称でひとこと書いてくれる機能や、写真1枚から複数の猫をまとめて記録できるようにするなど、少しずつ育てています。
気になる点があればいつでも教えてください。

## Frequently asked questions about にゃんログ

### Does Nyanlog have ads?

Nyanlog does not contain advertisements, offering an uninterrupted user experience.

### What devices does Nyanlog support?

Nyanlog is available on iPhone and iPod devices, allowing users to track their cat's moods on the go.

### How often is Nyanlog updated?

The app was last updated on October 5, 2026, indicating active development and support from the developer.

### What is the age rating for Nyanlog?

Nyanlog is rated 4+, making it suitable for users of all ages to enjoy documenting their cat's life.

### Can I share Nyanlog records with my family?

Yes, Nyanlog allows you to share your cat's records with family members, enabling collaborative tracking of feeding times and daily activities.

### What are the Pro features in Nyanlog?

Pro features include the 'Monthly Nyan Report' which summarizes your cat's mood and activities, and an AI tool to naturally remove clutter from photos.

### How does the AI mood translation work in Nyanlog?

The AI analyzes your cat's photo, looking at their tail, whiskers, expression, and posture to interpret their current mood, such as 'Sleepy' or 'wants a cuddle'.

### Can I try different voices for my cat's AI translations?

Yes, you can choose from five different voices for your cat's AI-generated text, and switching voices does not consume your AI checks.

## Version history (last 5 releases)

### 2.3.20 — 2026-10-05

- Nyan Trip (Pro): AI redraws a record or library photo's background as a trip destination. Your original is kept
- A passport for each cat: each trip adds a stamp. Open it from the Bookshelf in Look back
- Record past days from "When" on the record screen or the calendar
- Look back now has a Bookshelf with each cat's diary and passport
- "Played" now shows in the diary and in AI Check results
- Fixed the app sometimes not responding right after opening
- Bug fixes and improvements

### 2.3.19 — 2026-10-02

- AI check results now stay in Drafts for 7 days after you close them, so you can save them later
- The AI check screen now shows your cat's last result when you come back
- Ask how your cat feels right after adding them
- Mood tags are trimmed to the ones people use most
- "Your cats" in Settings now shows photos you can tap
- Bug fixes and improvements

### 2.3.18 — 2026-09-29

- New: your cat's Diary. Your records become a book you can flip through
- Improved calendar and monthly report
- Your cat's birthday is now celebrated in the calendar, weekly summary and monthly report
- AI Check on your cat's birthday now mentions the birthday in the cat's line and comment
- Other small fixes

### 2.3.16 — 2026-09-28

- Fixed the app slowing down after going from a post to Mood Check several times
- Other small fixes

### 2.3.15 — 2026-09-25

- Sign in with Apple or Google
- Already using email? Link Apple or Google in Settings > Account, so you can keep the same account on a new phone
- Other small fixes

## More apps by Masaki Sawada

- [メシコレ - 食事記録&カロリー管理](https://appshunter.io/ios/app/and/id6777846217)
- [Pojipo - 小さなよかった日記](https://appshunter.io/ios/app/pojipo/id6785914829)

All apps by Masaki Sawada: https://appshunter.io/developer/1896777128

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-10.*