A private app for Moments and Horizons

Keep what happened. Make space for someday.

Save experiences you have lived as Moments and experiences you want as Horizons. When you live a Horizon, turn it into a Moment without losing its plan or Journey.

Join the TestFlight beta Free to try on iPhone · iOS 18+
No account Private by default Your archive stays yours
A saved Moment Sunday hike with Dad Last October · Fitness · Together
The Once & Someday difference

A Horizon stays connected to the Moment it becomes.

Future plans and past experiences usually live in separate apps. Once & Someday keeps them connected.

1
Add a HorizonSave an experience you want and why it matters.
2
Update its JourneyAdd milestones, photos, notes, or saving progress.
Use “I lived this”Create a Moment while keeping the Horizon Journey connected.
Once & Someday on iOS 26 showing a northern lights Moment connected to the Horizon it began from
From a Horizon Dreamed January 2024 · lived a year later
Your life, in both directions

Begin with what you lived, or what you still want.

Start with a Moment you lived or a Horizon you want to experience.

A runner reaching the finish and seeing friends waiting
Moments · What happened

Save the details.

Add a title, date, story, people, place, feeling, photos, or a voice note.

A person watching sunrise above a sea of clouds
Horizons · What you want

Plan it your way.

Choose Someday, Working toward, or Saving for. A date and plan are always optional.

How it works

Turn a Horizon into a Moment.

The Horizon Journey stays connected after you add the lived experience to your Timeline.

01
Add a HorizonDescribe the experience and why you want it.
02
Track progressAdd milestones, notes, people, photos, or contributions.
03
Use “I lived this”Create a Moment linked to the complete Journey.
Northern lights imagined as a future experience
SomedaySee the northern lights
Hands making dumplings together at home
OnceLearned Mom’s way of folding them
Inside the app

Review and use your archive in more ways.

Once & Someday includes capture, Horizon Journeys, reflections, places, Storybooks, and widgets.

See your places.

View located Moments on a map. Postmarks group Moments saved at the same place.

Once & Someday on iOS 26 showing a Places map and personal postmarks
Aa

Add the details you want.

Start with a title or photo, then add people, a place, feeling, story, or more media.

PhotosVoice notesPeopleFeelings

Review past Moments.

Use yearly reflections, On This Day, and Home Screen widgets to revisit your archive.

ReflectionsWidgetsOn This Day

Create Storybooks.

Turn a completed Journey, year, or place into a designed PDF. The layout adapts to the amount of writing and media.

Paper
Botanical
Night

Import events and shared items.

Review events from Apple or Google Calendar, or send a photo, video, or link through Save to Once & Someday.

Share selected content.

Create a Moment card or Storybook locally. Only the item you choose is passed to the iOS share sheet.

Private by design

Your archive stays off our servers.

There is no Once & Someday account and no social feed. Your archive begins on your iPhone and stays under your control.

On your device

Moments and Horizons are stored locally. Optional Pro sync uses your private iCloud database.

No account

Once & Someday does not require a separate login, profile, or password.

Face ID lock

Lock the app whenever you leave it and keep notification wording discreet.

Yours to export

Take out the complete archive, including your media, whenever you want.

Questions, answered

Before you begin.

What is the difference between a Moment and a Horizon?

A Moment is something you lived and want to keep. A Horizon is something you hope to experience someday, are working toward, or are saving for. When it happens, “I lived this” turns the Horizon into a Moment and keeps the Journey connected.

Do Horizons have deadlines?

No. A Horizon can have an optional season, next step, or reminder, but it never becomes overdue.

What is a Storybook?

A Storybook is a designed PDF created privately on your iPhone. Choose Paper, Botanical, or Night, then keep, print, or share the finished book anywhere.

Is my archive private?

Yes. Your archive starts on your device, there is no Once & Someday account, and optional Pro sync uses your private iCloud database.

Is Once & Someday free to try?

Yes. The TestFlight beta is free to try. Optional Pro adds unlimited creation, richer Journeys, reflections, Storybooks, premium widgets, and private iCloud sync.

Get started

Start with a Moment or Horizon.

Add something you lived or something you want to experience.

Join the TestFlight beta No account · Private by default · iOS 18+