Lumi: One Line Journal

Lumi: One Line Journal

One line diary & mood tracker

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Free
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Details

  • Released
  • Updated
  • August 4, 2026
  • September 29, 2026

Features

Lumi: One Line Journal screenshot #1 for iPhone
Lumi: One Line Journal screenshot #2 for iPhone
Lumi: One Line Journal screenshot #3 for iPhone
Lumi: One Line Journal screenshot #4 for iPhone
Lumi: One Line Journal screenshot #5 for iPhone
Lumi: One Line Journal screenshot #6 for iPhone
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About

One emoji. One line. That's a whole day. The journal is free. Forever — unlimited entries, the full year grid, search and your insights. No trial that expires. Lumi is the journal for people who never keep a journal. No blank page staring back at you, no guilt about the entry you "should" write. Pick how you feel, type a single sentence, and you're done. The whole thing takes ten seconds — which is exactly why you'll still be doing it a year from now. YOUR YEAR, PIXEL BY PIXEL Every day you log becomes one coloured square in a grid of your whole year. Watch it slowly fill in. Tap any past square to read — or quietly fix — what that day was. It's the most honest picture of your life you'll ever see on one screen. WHAT LIFTS YOU Once you have a few weeks written down, Lumi counts them. It reads back your own words and tags and shows which ones turn up on your better days, and which turn up on your worse ones — with the number of days behind each one, so you can weigh it yourself. Tap one to see the days behind it. This is the part people stay for, and it all happens on your phone. FIND ANY DAY AGAIN Search everything you have ever written. Or ask a plain question — "what did my best weeks have in common?" — and get an answer built only out of your own entries. Your first question is free, and every answer is kept so you can read it again. NEVER LOSE A WORD Your sentence saves itself as you type. Close the app mid-thought, drop your phone, run out of battery — it's already saved. A REFLECTION AT THE END OF THE WEEK (optional) Lumi can read back your own entries and write you a short, warm reflection — the gentle pattern a friend would notice that you can't see from inside your own week. At the end of every month and every year there's a longer one, and you can pick any two dates for a letter about just those days. It's powered by AI and honest about being AI. Your first reflection is free, so you can read one about your own week before you decide anything. YOUR YEAR AS A LITTLE BOOK Turn a finished year into a small PDF booklet — every day in order, with the letters Lumi wrote you. Yours to keep or to print, and it stays yours after the subscription ends. No core feature is locked behind a wall — your reminders stay free too. You can use Lumi happily without paying a thing. BUILT TO BE PRIVATE - No account. No sign-up. No email. Nothing to log into. - Your entries live on your device — and so does the counting. "What lifts you" never leaves your phone. - Lock Lumi behind Face ID or your phone's passcode if you want to. - No ads, and nothing sold to anyone. Analytics are off until you say yes, you can switch them back off, and what you write is never part of them. - When you ask for a reflection, or ask your journal a question, the lines it covers are sent to be read once. They are never stored on any server. - Export everything to CSV whenever you want — and read it back in on a new phone. It's your life; take it with you. A GENTLE NUDGE, NOT A NAG One optional daily reminder, at a time you choose. The wording changes so it never becomes wallpaper you stop seeing. Miss a day? Nothing breaks. Your streak is there to encourage you, not to punish you. Meet Lumi, the little firefly who lights up in the same colors your year fills with. Small app. Small habit. A surprisingly big picture by December. Start tonight. One line. SUBSCRIPTION Lumi Pro is an auto-renewing subscription, monthly or yearly. The price is shown in your own currency on the subscription screen before you buy. Payment is charged to your Apple ID at confirmation. It renews automatically unless you cancel at least 24 hours before the current period ends. Manage or cancel anytime in your account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://unverfirat.github.io/lumi-journal-legal/privacy.html
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What's New in Lumi

1.2.0

September 29, 2026

Lumi counts, notices and writes, so you don't have to. HOW YOU FEEL, IN WORDS The five faces are gone. You now pick from ten feelings, each with its name under it: exhausted, angry, sad, anxious, okay, tired, calm, good, happy, grateful. Insights shows the ones you pick most, and letters read them too. A QUESTION FROM YOUR OWN DAYS With Lumi Pro, the question above today's line comes from your journal: something you wrote yesterday, a day from a year ago, or what tends to lift you. SEE THE DAYS BEHIND IT Tap anything on What Lifts You to see the days it was counted from. If it has changed over time, Lumi shows that too. LUMI NOTICED If your last two weeks sit well away from your usual, Lumi leaves a short note on Today. It is rare, and you can turn it off in Settings. A LETTER ABOUT ANY DATES Pick two dates, like a trip or a hard few weeks, and Lumi writes about just those days. Once a month it may also offer a letter about the same week a year ago. ON YOUR LOCK SCREEN Add Lumi to your iPhone Lock Screen to see your streak and today's question. ALSO NEW - The daily reminder works. Lumi asks after your first line, and you pick the time. - A new journal starts with your week, then grows to a month and a year. - You can fill in the last six days from memory. - Insights and What Lifts You are one icon with two tabs. - Tags: three suggestions and an Add button. No account, no ads.

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Subscriptions & In-App Purchases

Sunday Reflections Monthly

A warm reflection on your week, every week.

$2.991 Month
14 Days trial
How to cancel Lumi subscription ⁉️

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