She won’t remember the week she said goodnight to every light switch in the house. By spring, you won’t either. Write it down tonight, in one line, and ask Grandma to write hers.
One day she gets to meet the little girl she was.
Read a letter written for one October
October, with Eva · 2 years, 3 months
The month we
saved the sunshine
Kept by you, Dad and Grandma
Dear future you,
This month, you asked if we could save some sunshine for tomorrow. Just a little, you said. It seemed a perfectly reasonable thing to ask.
One morning, you put your shoes beside mine. “Now they’re friends.” We left them like that by the door.
Grandma kept a moment too…
A fictional letter, written from one month of memories
She says thank you to the bus every morning when it leaves.
Not the first steps. The small things: the word she invented, the thing she said every morning. Try to remember a Tuesday from last spring. You were there for all of it.
And she won’t keep it either. Almost nothing from the first years stays with a child. Whatever she was like at two lives only in the people who were there.
It doesn’t have to go.
Asked if the bath gets cold when we leave.
Carried the heavy bag three steps. “I’m strong like you.”
Tasted the flour and told me it was broken sugar.
Taught her to high-five. Now she high-fives the postman.
One Saturday, four people · illustrative memories
It takes a village
With her dad she’s fearless. With Grandma she’ll sit for an hour sorting buttons. Each of you sees someone the others never meet. Invite them, and they write in the same book, in their own words, private to your family.
Years from now, Grandma’s lines will still be there, in her own words.
Start her story togetherA letter every month
Her October, sealed and dated, addressed to the person she’ll grow into. Every line in it is one you kept, or Grandma did. Read it to her now, or keep it for when she’s older.
Written from your memories, with a little help from AI. Every moment in it is one your family kept.
ONE LITTLE LINE
October, with EvaDear future you,
This month, you asked if we could save some sunshine for tomorrow. You put your shoes beside mine so they could be friends.
And when the moon came out, you gave it a name of your own: a night-light.
Little things. So very you.
You’ll recognise every line
From October’s letter
The sunshine, saved.
This month, you asked if we could save some sunshine for tomorrow. Just a little, you said. It seemed a perfectly reasonable thing to ask.
Two pairs. One little friendship.
One morning, you put your shoes beside mine. “Now they’re friends.” We left them like that by the door, your tiny pair tucked up against my much bigger ones.
Grandma’s moment belongs here too.
Grandma kept a moment too. When the moon came out, you called it a night-light. I wonder how long we’ll keep calling it that.
A fictional letter
Her sky
Every memory you keep becomes a star in her sky, and every month draws its own constellation. Tap one and you’re back at that breakfast.
Every star holds a memory. Tap one.
Eva’s sky
Pegasus · 5 of 8 stars — 3 more to complete it
8 OCTOBER · 2 YEARS, 3 MONTHS
“Can we save some sunshine for tomorrow?”
Fictional memories · drawn with the app’s own sky
Her book
Every birthday, her letters close into a book: her name on the cover, every month’s letter inside, every person who kept a line. Read it in the app, or save it as a PDF ready to print.
Eva at one
JULY 2025 TO JUNE 2026
64 memories kept
ONE LITTLE LINE
Her letters, month by month
AUG
2026
SEP
2026
OCT
2026
NOV
2026
DEC
2026
Her books, year by year
Eva’s first year
JULY 2024 TO JUNE 2025
ONE LITTLE LINE
Eva at one
JULY 2025 TO JUNE 2026
ONE LITTLE LINE
Eva at two
JULY 2026 TO JUNE 2027
ONE LITTLE LINE
Eva at three
One day she’ll pull one down and read about being two.
And one day, maybe, she’ll read it to someone small.
How it works
Thirty seconds, then back to your day.
A line in your own words. Dictate it when your hands are full.
The muddy shoes. Their latest drawing. A line can stand on its own too.
Dad, Grandma, anyone who loves her, each in their own words.
No streaks. No catching up. Come back whenever something’s worth keeping.
A quiet corner of the internet
No public feed. No ads. Share with the people you choose.
Read and export everything you’ve kept, subscribed or not.
Export your memories and keepsake letters for your own collection.
Your memories are private. You choose who to invite to your child’s family. There are no ads and we do not sell your data. Read our Privacy Policy for details about storage and the services we use.
One Little Line is free to get started. Some features may require a subscription. Any available trial, current pricing, and subscription terms are clearly displayed in the app before you subscribe.
Everything you’ve kept stays yours to read and export. A subscription keeps new memories and letters coming.
AI helps turn the memories you save into a monthly letter. The words and moments come from your memories. You can read the letter in the app and export it as a PDF.
Every birthday, her letters close into a book you can read in the app or save as a PDF, ready to print.
Yes, and we hope they do. Invite the people who love your child to add memories in their own words; each memory shows who kept it, and they all become part of the same story.
No. A sentence whenever you have a moment is enough. You can also add memories from earlier dates. There is no backlog to catch up on.
One Little Line is available on iPhone and Android. Download it from the App Store or Google Play.
Start with whatever happened today
For now, just keep one little line.
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