Log it in seconds
Choose a feeling, add what set it off if you know. A mood with no explanation attached is still a real entry.
Mood tracker · Diary · 16 languages
The diary that remembers you back.
Tag a feeling in five seconds. Tell Tochi the rest whenever you feel like it. It keeps track of the people, the patterns and the situations you're actually living through — then writes your year into twelve illustrated chapters you'll want to reread.
Free to start. No streaks, no scores, no 6 a.m. guilt notification.
Meet Tochi
Small hedgehog. Surprisingly good listener.
Tochi is the one you talk to. It asks one thing at a time, remembers what you said last month, and has never once suggested you try gratitude journaling.
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Talks with you, not at you
A face-to-face conversation with expressions that react to what you say — not a chat feed with a mascot stuck on the side.
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Asks, then actually listens
One question at a time, grounded in what you wrote. Nothing about your inner child unless you brought it up first.
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Keeps your people straight
Bea from work and Bea your sister stay two different people. Correct Tochi once and it stays corrected — your word beats anything it guessed.
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Knows exactly where it stops
Ask for medical, legal or financial advice and Tochi won't improvise. It stays with how the thing is landing on you, and points you somewhere real when that matters.
Tochi helps you notice. It never claims to know how you feel.
Mood orbs
Five seconds is a complete entry
Pick the colour that fits today. That's a log — done. Add words when you have them, and Tochi picks up the thread from there.
Add words when they come
Type freely, or let Tochi ask. Guided writing turns "I don't know, just off" into something you can read back in a year.
Watch the pattern surface
Weeks of orbs become something you can see — which stretches were heavy, and what kept turning up right next to them.
Life Chapters
Twelve chapters. One of them is having a year.
Assign an entry to the chapter it belongs to and Tochi writes it into an illustrated page — in your voice, from your words, using the moments you actually wrote down. Over months, a chapter becomes a book about you.
Chapter 1 of 12
Little Beginnings
For the things that just started and could still go either way. A new job, a new habit, a new person. Nothing in here has to work out yet.
hopefultentativetender
Every chapter has its own art, its own weather and its own way of writing. Pick one and look inside.
Beyond the entry
Three things your notes app is never going to do
Tochi doesn't just store the day. It keeps track of what's still unfolding, what it has understood about your world, and what all of it adds up to.
Episodes
The thing that's been going on for six weeks
Some situations aren't a single day. A tense stretch at work, a friendship quietly changing, a health worry that won't resolve. Tochi follows those as Episodes and updates them as they move.
- Opens from something you actually wrote, not from a template
- Rewrites the arc when the situation changes, instead of piling on more notes
- Shows its evidence — which of your entries led to which reading
- Closes when it's genuinely over, and stays readable afterwards
Me & Tochi
It learns your world. You hold the eraser.
The people, places, work and worries that keep coming up become a map Tochi can see — and one you can reach into and fix at any time.
- Everything Tochi remembers can be edited by hand
- Correct a name or a relationship once and the correction outranks everything it inferred
- Tell Tochi to forget something and it stops using it
- Anything thinly supported stays unsaid rather than being stated as fact
Keepsakes
A year you can actually hold
Chapters don't have to stay trapped behind a login. Export one as an illustrated PDF — the art, the pages, your words — and print it, keep it, or hand it to someone.
- Export a chapter as a formatted, illustrated PDF
- Your prose stays exactly as you wrote it
- The chapter's art travels with the pages
- Yours to print, archive, or give away
Everything else
Built for the days you don't have the words
The small things that decide whether an app like this survives past week two.
Guided writing
Blank page too blank? Tochi asks, you answer, and it reads back as writing rather than as an interview transcript.
Quick log and deep log
Five seconds on a bad night, twenty minutes on a Sunday afternoon. Both count as showing up.
Insights that stay honest
Trends across weeks and months, with no wellness score pretending to grade your personality.
Gentle reminders
One nudge, at a time you choose. Miss it and absolutely nothing burns down.
Themes and seasons
The whole world changes colour — chapters, mood palettes and Tochi's own little scenes.
Home screen widgets
Log a mood without unlocking your way through three screens first.
16 languages
Including Japanese, Korean, Traditional Chinese, German, French, Spanish and Portuguese — written for each language rather than pushed through a translator.
Passcode lock
Your diary, behind a lock screen of its own.
A hedgehog that knows its limits
Ask for medical, legal or financial advice and Tochi redirects — warmly, and to a real helpline when that's what's needed.
Straight answers
What actually happens to what you write
You're about to type the most private things on your phone into this app. So here's the plain version, before you do.
Your words are sent to an AI to be understood
To hold a conversation, follow an Episode or write a chapter page, your entry text is sent to OpenAI for processing. OpenAI does not train its models on data sent through its API. If that's a dealbreaker for you, better you know it on this page than later.
Stored under your account, deleted on your word
Entries live in Google Firebase, tied to your account. Delete an entry and it's gone. Delete your account and it all goes with it — including what Tochi had understood.
No ads, and never your diary
Tochi shows no ads in the app. When we advertise Tochi elsewhere, your diary plays no part: what you write is never sent to an ad service or used to target advertising at you.
The full detail — every service involved, what each one sees, how long it's kept and how to have it deleted — is in the privacy policy and the terms. Both are available in all eight site languages.
Before you ask
Frequently asked
Is Tochi free?
Yes. Downloading Tochi, logging moods and saving diary entries are free and unlimited — the habit never gets metered. A free account also includes one conversation with Tochi and two deep logs each week. Premium removes those weekly limits.
Does it work in my language?
The app ships in 16 languages and picks up your device language the first time it launches. This site, the privacy policy and the terms are available in English, 日本語, 한국어, 繁體中文, Deutsch, Français, Español and Português.
What exactly are Life Chapters?
Twelve illustrated storybooks inside Tochi. You assign an entry to the chapter it belongs to, and Tochi writes that moment into a page using your own words. As pages accumulate, the chapter becomes a running story of that part of your life — and you can export any of it as a PDF.
Do I have to write every day?
No. There are no streaks, no scores and no guilt mechanics anywhere in Tochi. Disappear for three weeks and it picks up where you left off, without commentary.
Is my diary used to train AI models?
No. Your entries are sent to OpenAI so that Tochi can respond and write, and OpenAI does not use data submitted through its API to train its models. The full processing detail is in the privacy policy.
Is Tochi a replacement for therapy?
No, and it won't pretend otherwise. Tochi is a diary with a good memory, not a clinician. If you ask it for medical advice it will say so, and if something you write suggests you're in real trouble it will point you to an actual helpline instead of improvising.
Begin
Chapter one usually starts with one bad Tuesday
Log how today actually went — five seconds is plenty. Tochi takes it from there.
Free on iOS and Android. 16 languages.