FOUR is a photo booth app for iPhone. Take four-cut photo strips with the people you love — together, or a thousand miles apart — and keep every one in a private timeline that becomes your shared history.
Free · No account needed to take your first strip


FOUR is a free photo booth app for iPhone made by Archer Lin. It recreates the Korean four-cut photo booth on your phone: you take six shots with a countdown, pick your favourite four, choose a frame and a look, and the finished strip is saved to a private timeline. You can take a strip with someone who isn't in the room by sending them a link, tag the people in each strip, and set a monthly tradition with them. Signing in with Apple, Google or email is optional and only backs up your strips so they follow you to a new phone. FOUR does not sell your data, has no public feed, and never uses face recognition.
Everything you need to take a strip, make it beautiful, and keep it.

Three, two, one, flash — six times, with a countdown and a shutter that actually sounds like one. Prop the phone up and use hands-free mode so nobody has to sit out.
More shots than you need means better results without a longer session. Tap four, in the order you want them, and watch the strip build.
Twenty-odd frames chosen carefully, not five hundred thrown at a wall. Looks that flatter without turning anyone into plastic.
Save the strip, or a 9:16 card built for Stories. Nothing is posted for you — sharing is always your move.
Send a link. You take your four, they take theirs, and FOUR composes the strip the moment both sides land. It works across time zones, and it's free — this is the part we'd never put behind a paywall.

A gentle nudge, never a streak you can lose. Twelve months later you have a year of the two of you, in order, on one screen — and deleting the app starts to mean something.

Timeline, calendar, and a page for each person you take strips with. Forty-six strips, together since April 2024. Come back just to look — that's the whole point.

Most photo booth apps stop at the picture. FOUR is built around the people in it.
Make taking a photo strip more fun than opening the camera.
Strips are something you make with specific people, not content you broadcast.
Repeated strips become a visual history of your relationships.
This app is full of faces. We built it accordingly.
The things people ask us most.
Yes. Taking strips, keeping them, tagging people, remote strips and sharing are all free and always will be — they're how the product works, not a trial. A premium tier adds extra frames, 4K export and a few power features.
No. You can take your first strip without signing up for anything. An account only matters when you want your strips to survive a lost or replaced phone.
On your device. FOUR doesn't upload your pictures to a server, which is also why there's no public feed to appear in.
You take your four shots and send a link. Your friend takes theirs whenever they're free — different time zone is fine — and the strip composes itself once both halves are in.
That's the aim. The looks lift exposure, warm skin tones and add a little grain — the things that make a photo flattering — without the obvious filtered look.
Not yet. iPhone first, Android once the iPhone version is properly good.
Free to take, free to keep, free to share.
iPhone · iOS 15 and later · English and 繁體中文