Unsent
An app that learns to understand you,
through your own diary.
Your diary lives in your app — not in ChatGPT.
- After signing in, you'll add payment details (free for the first 28 days)
- We never post anything on your behalf
Write your diary straight from ChatGPT
Keep using ChatGPT as you always do — and save a diary right from it. Based on what you talked about, it's saved as a single entry.
The more you write, the better it understands you
As your entries grow, the AI understands you more deeply — reading the shifts and patterns in how you feel, in words that fit you.
Nothing stays in ChatGPT
Even during analysis, your diary is only passed to ChatGPT momentarily. Your records stay in Unsent — nowhere else.
The more you keep it up, the more the view changes
Keep writing, and you get to know yourself. Know yourself, and your days change.
- Just talk, and AI turns it into writing. Nothing to prepare, so what never stuck starts to stick
- The more you write, the more AI reads the shifts and patterns in how you feel — and you start to understand how to handle them
- Your days grow lighter, one entry at a time. The same day starts to look a little different
Because you keep going, you get to know yourself. Because you know yourself, living gets a little easier.
FOR YOU
This might be for you.
Job seekers & new graduates
After the interview, talk to ChatGPT. It becomes your self-reflection journal. The more you write, the clearer your own story gets.
For job seekers →
The things you can't say at work
The meeting that wasn't fair. Things you can't say to colleagues or family. You can say them here — no audience, no blowback.
For working people →
Parenting, reflected back
Save something your child said today. The AI reflects how you see your child — and quietly, your own mind settles.
For parents →Also
Keep it close on your home screen
Add it to your phone's home screen to open it as an app — ready the moment you want to write.
Your past self, arriving unannounced
Now and then, a past entry quietly returns — a reminder that the unsteadiness isn't only today's.
A gentle reminder
For those who want to keep writing: on days with no entry yet, we'll nudge you in the morning, afternoon, or evening.
Share only with people you trust
Quietly share entries with the people you choose.
Pricing
What's included
- Write & read your diary
- Deliver & share your past with someone you trust
- ChatGPT / Claude integration (write & reflect in chat)
- Unlimited AI, 10 photos per entry, video
※ Even without a subscription after the trial, you can still read your own past entries
- In Japan, sign-up is via LINE account only
- When you leave, you can download everything you've written
- After signing in, you'll add payment details. It's free for 28 days — cancel within that window and you won't be charged
Not sure if Unsent is for you?
- We hold a 30-minute online session once a month. We walk through what you can do here. No need to speak up or turn your camera on — feel free to ask if anything's on your mind.
Sep 19 (Sat) 20:00 JST
30 minAI日記帳 Unsent活用セミナー
会員以外の方も参加できます。
Registration closes 24 hours before the session
None of these dates work?
We'll email you once the next session is scheduled.
Who's hosting
- Works in business development at a finance × tech company. Builds and runs Unsent while raising three kids across two homes.