Unsent

Say what you can't say —
to the AI alone.

  • After signing in, you'll add payment details (free for the first 28 days)
  • We never post anything on your behalf

"Is this really okay?" — a feeling that quietly shows up in your 40s and 50s, sometimes called a midlife crisis.
It's no one's fault, yet it weighs on you. You don't have to name it to feel it.

Say what you can't say, to the AI alone

The unfair meeting, the words you swallowed. Just speak the things you couldn't say out loud, and the AI shapes them into a diary — with no one to tiptoe around.

By voice or by typing — let it out at your own pace.

A diary of true feelings, written by talking

Not connected, so it won't blow up

Unsent has no followers and no timeline. No worry of being seen, no fear of being found out. What you write is yours alone. You can set your true feelings down with peace of mind.

Your diary stays inside your app. Nothing remains in ChatGPT.

A diary screen connected to no one

The more you write, the better it reads how you feel

Some days the haze just won't turn into words. As your entries grow, the AI reads the shifts and patterns in your heart and puts them into words. Letting it out, little by little, your mind settles.

* AI analysis and writing-by-conversation require a one-time setup. Getting started / connection guide

AI emotion analysis

The weight you've carried gets lighter

Frustration bottled up doesn't vanish — it quietly wears you down. Just having a place to let it out gets things moving.

Illustration: bottled-up feelings let out, and the heart grows lighter (16:9)
  • Let out the honest words you couldn't say to anyone
  • As you write, the haze takes shape and becomes something you can handle
  • Instead of being swept up, you can calmly choose what to do next

The more you let out, the lighter it feels — and the way each day looks begins to change.

What is a midlife crisis?

A period when, even though work and family seem fine, a quiet emptiness or restlessness suddenly catches up with you. Not quite worth bringing up with someone, yet it doesn't go away. Unsent quietly holds that haze as a diary entry.

What you can't post online

Even a venting account still has eyes on it — followers, getting found out, going viral. Unsent connects to no one, so you can let your true feelings out as they are, with only the AI to receive them.

Won't blow upReceives you
  • Social / venting accounts
  • Notes apps
  • Unsent

Pricing

What's included

  • Write & read your diary
  • Look-back memories delivered via LINE/email
  • Save entries from ChatGPT or the app
  • Voice input (AI shapes it into a diary) & unlimited AI
  • 10 photos per entry & video

Even without a subscription after the trial, you can still read your past records

¥2,400 / year
  • 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.
AI日記帳 Unsent活用セミナー

Sep 19 (Sat) 20:00 JST

30 min

AI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.

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