Your photos, changing on every click of a ratchet.
A cranked ratchet is never even — it starts slow, races, and dies away. SnapClack puts your photos on exactly that rhythm, so the cuts land on the clicks instead of on a metronome.
Coming to the App Store · iPhone · iOS 18
Three steps
- 1
Pick photos
As many as you like — hundreds come in with a progress bar and a working Cancel. They arrive in the order they were taken; keep that, flip it, shuffle it, or drag any photo by hand.
- 2
Pick a ratchet
Fourteen recordings — wooden ratchets and camera mechanics — each drawn as its own click pattern, so you can tell a slow crank from a dense burst before you hear either. Or record your own.
- 3
Make the video
A vertical 9:16 file, ready to post. On a recent iPhone a twenty-photo video takes under a second.
What makes it different
Every cut is on a click
Not close to one. The clicks are found in the recording itself, and the frame changes a hair before each one — which is what reads as exactly on the beat.
No photo is ever dropped
A ratchet at full speed clicks faster than the eye can read a frame. SnapClack skips the click, not the photo: the frame simply holds through it.
Nothing is cropped
Your photo is fitted whole, over a blurred copy of itself. You picked all of it, so all of it is in the video.
It never leaves your phone
No accounts, no uploads, no server. Import, planning and rendering all happen on the device.
Record your own ratchet
From the microphone, or from an audio file. The clicks are measured on the phone by the same detector the bundled sounds went through — trim the take, tune the sensitivity, and it sits in the picker like any other.
Three ways a frame can land
Classic swaps the whole frame. Stack drops each photo onto a growing pile, a little askew. Table scatters them across the first shot. The scatter is seeded, so the preview and the saved video always agree.
The rhythm is the whole point
If you want to know why a cut 40 ms early feels more on-beat than one exactly on time, that is on the next page.
How it works