The product

A journal that meets you as a conversation.

Most journals hand you a blank page and wish you luck. JAI asks how the day went. You answer the way you'd text a friend, and the next morning it gives back what it noticed: how you felt, how you slept, what you kept circling around, and whether the things you said mattered got any of your time.

Talking is logging

You never have to sit down and write.

There's one text field and no form. Say you slept badly, that you got two decent hours of work in, that lunch with your sister was better than expected. JAI replies in the moment, and quietly notes what you mentioned.

When something you track shows up in a message, a small green chip appears under it so you can see it landed. The first message of each day marks your streak. JAI carries the last two days of conversation in full and a short recap of the five days before that, so it can pick up a thread from Tuesday without you re-explaining it. Ask it a direct question about your own history and it will go and look before it answers.

How a day goes

Start to finish.

1. You talk to JAI whenever you have something to say. Once in the morning, five times across a bad afternoon, or not at all.
2. It replies straight away, and marks off the things you chose to track as they come up in what you've said.
3. The day closes. A day runs six in the morning to six the next morning, so a conversation that runs past midnight still belongs to the day it started in.
4. Overnight, JAI reads back everything you logged and works out what the day actually held.
5. You wake to a brief, and to charts that have moved. Then it starts again.

The next morning

Yesterday, handed back to you.

The brief is a short message, three to six sentences, waiting at the top of a fresh conversation. It recaps yesterday with the actual specifics: what you slept, what you trained, how many hours of focused work you got, what you logged for the things you track, and anything notable that happened.

If there's a pattern worth mentioning across the past week, it gets one sentence. If a goal has picked up or lost momentum, that gets a few words. Then it asks you one question, and you're into today. If yesterday was thin, the brief says so plainly rather than dressing it up.

Progress

The picture that builds over weeks.

One day tells you almost nothing. A month tells you a great deal. Progress holds three trend lines across the last seven days, each with a quiet arrow showing how this week compares to the one before.

Above the charts, a row of seven days shows which ones you logged and how long your current streak is. Below them, every extra thing you asked JAI to keep an eye on gets its own row: its most recent reading, and seven dots for the days it was and wasn't mentioned. It is an honest record of what you told it, not a scorecard of how well you did.

Tracking

You choose what it keeps an eye on.

Six core rhythms come as standard: sleep, eating, exercise, deep work, mood, and the day's events. Turn any of them off and JAI will never ask about it again. It will still listen if you bring it up.

Past that, there's a shelf of suggestions to add: hydration, meditation, gratitude, time outdoors, reading, screen time, social connection, energy, stress, caffeine. Then finer ones, if you want them, from cardio and studying and meal prep through to doom scrolling, smoking, gambling and spending. And a text field for anything not on the list, in your own words.

Whatever you pick, the method stays the same. You keep talking, and JAI keeps score. It aims to learn how each tracked thing went at some point in the day, but it asks at most one question per reply and never stacks them. Change the list whenever you like; it adapts from the next message.

Goals

Whether your time went where you said it mattered.

Mention something you're working toward and JAI puts a card in the chat with a suggested name. You confirm it, rename it, or dismiss it. Nothing is tracked because you said it out loud once.

Three goals can be active at a time, which is a limit rather than an oversight. As the days accumulate, JAI connects what actually happened to what you said you were working on, and the morning brief will occasionally tell you when a goal has gone quiet. That comparison, between the stated priority and the recorded week, is the part most of us avoid making on our own. Mark a goal fulfilled or drop it by simply saying so.

One reminder, at a time you set

JAI sends a single push a day, when your brief is ready. You pick the hour and minute; it goes out at that time in your own timezone. The notification usually carries a line from yesterday, so it reads like something worth opening rather than a nag. Turn it off entirely and nothing else changes.

Pricing

What it costs.

JAI is free to download, and every plan opens with a one-week free trial — so you can use it through a real week before you decide anything. After the trial, a subscription is required to keep going.

Payment is charged to your Apple ID when the free trial ends. The subscription renews automatically unless you turn renewal off, and you manage or cancel it in your Apple ID settings rather than inside JAI. Cancel at least a day before the trial ends and you aren't charged. If you reinstall the app or move to a new phone, Restore purchases brings your subscription back.

Full terms are in the Terms of Service.

Availability

What you need to run it.

iPad and Android are not currently supported. JAI runs on iPhone only. There is no web version and no desktop app. We would rather say that plainly than let you find out after downloading.

Try JAI on iPhone.

Every plan opens with a one-week free trial. Cancel before it ends and you aren't charged.

Questions, or something not working? Support & FAQ. What we do and don't do with your words is in the Privacy Policy.